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4 definitions found
 for Yellow Jack
From The Collaborative International Dictionary of English v.0.48 :

  Jack \Jack\ (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?,
     Heb. Ya 'aq[=o]b Jacob; prop., seizing by the heel; hence, a
     supplanter. Cf. Jacobite, Jockey.]
     [1913 Webster]
     1. A familiar nickname of, or substitute for, John.
        [1913 Webster]
  
              You are John Rugby, and you are Jack Rugby. --Shak.
        [1913 Webster]
  
     2. An impertinent or silly fellow; a simpleton; a boor; a
        clown; also, a servant; a rustic. "Jack fool." --Chaucer.
        [1913 Webster]
  
              Since every Jack became a gentleman,
              There 's many a gentle person made a Jack. --Shak.
        [1913 Webster]
  
     3. A popular colloquial name for a sailor; -- called also
        Jack tar, and Jack afloat.
        [1913 Webster]
  
     4. A mechanical contrivance, an auxiliary machine, or a
        subordinate part of a machine, rendering convenient
        service, and often supplying the place of a boy or
        attendant who was commonly called Jack; as:
        (a) A device to pull off boots.
        (b) A sawhorse or sawbuck.
        (c) A machine or contrivance for turning a spit; a smoke
            jack, or kitchen jack.
        (b) (Mining) A wooden wedge for separating rocks rent by
            blasting.
        (e) (Knitting Machine) A lever for depressing the sinkers
            which push the loops down on the needles.
        (f) (Warping Machine) A grating to separate and guide the
            threads; a heck box.
        (g) (Spinning) A machine for twisting the sliver as it
            leaves the carding machine.
        (h) A compact, portable machine for planing metal.
        (i) A machine for slicking or pebbling leather.
        (k) A system of gearing driven by a horse power, for
            multiplying speed.
        (l) A hood or other device placed over a chimney or vent
            pipe, to prevent a back draught.
        (m) In the harpsichord, an intermediate piece
            communicating the action of the key to the quill; --
            called also hopper.
        (n) In hunting, the pan or frame holding the fuel of the
            torch used to attract game at night; also, the light
            itself. --C. Hallock.
            [1913 Webster]
  
     5. A portable machine variously constructed, for exerting
        great pressure, or lifting or moving a heavy body such as
        an automobile through a small distance. It consists of a
        lever, screw, rack and pinion, hydraulic press, or any
        simple combination of mechanical powers, working in a
        compact pedestal or support and operated by a lever,
        crank, capstan bar, etc. The name is often given to a
        jackscrew, which is a kind of jack.
        [1913 Webster]
  
     6. The small bowl used as a mark in the game of bowls.
        --Shak.
        [1913 Webster]
  
              Like an uninstructed bowler who thinks to attain the
              jack by delivering his bowl straight forward upon
              it.                                   --Sir W.
                                                    Scott.
        [1913 Webster]
  
     7. The male of certain animals, as of the ass.
        [1913 Webster]
  
     8. (Zool.)
        (a) A young pike; a pickerel.
        (b) The jurel.
        (c) A large, California rock fish ({Sebastodes
            paucispinus); -- called also boccaccio, and
            m['e]rou.
        (d) The wall-eyed pike.
            [1913 Webster]
  
     9. A drinking measure holding half a pint; also, one holding
        a quarter of a pint. [Prov. Eng.] --Halliwell.
        [1913 Webster]
  
     10. (Naut.)
         (a) A flag, containing only the union, without the fly,
             usually hoisted on a jack staff at the bowsprit cap;
             -- called also union jack. The American jack is a
             small blue flag, with a star for each State.
         (b) A bar of iron athwart ships at a topgallant masthead,
             to support a royal mast, and give spread to the royal
             shrouds; -- called also jack crosstree. --R. H.
             Dana, Jr.
             [1913 Webster]
  
     11. The knave of a suit of playing cards.
  
     12. (pl.) A game played with small (metallic, with
         tetrahedrally oriented spikes) objects (the jacks(1950+),
         formerly jackstones) that are tossed, caught, picked up,
         and arranged on a horizontal surface in various patterns;
         in the modern American game, the movements are
         accompanied by tossing or bouncing a rubber ball on the
         horizontal surface supporting the jacks. same as
         jackstones.
         [PJC]
  
     13. Money. [slang]
         [PJC]
  
     14. Apple jack.
         [PJC]
  
     15. Brandy.
         [PJC]
  
     Note: Jack is used adjectively in various senses. It
           sometimes designates something cut short or diminished
           in size; as, a jack timber; a jack rafter; a jack arch,
           etc.
           [1913 Webster]
  
     Jack arch, an arch of the thickness of one brick.
  
     Jack back (Brewing & Malt Vinegar Manuf.), a cistern which
        receives the wort. See under 1st Back.
  
     Jack block (Naut.), a block fixed in the topgallant or
        royal rigging, used for raising and lowering light masts
        and spars.
  
     Jack boots, boots reaching above the knee; -- worn in the
        17 century by soldiers; afterwards by fishermen, etc.
  
     Jack crosstree. (Naut.) See 10, b, above.
  
     Jack curlew (Zool.), the whimbrel.
  
     Jack frame. (Cotton Spinning) See 4
         (g), above.
  
     Jack Frost, frost or cold weather personified as a
        mischievous person.
  
     Jack hare, a male hare. --Cowper.
  
     Jack lamp, a lamp for still hunting and camp use. See def.
        4
         (n.), above.
  
     Jack plane, a joiner's plane used for coarse work.
  
     Jack post, one of the posts which support the crank shaft
        of a deep-well-boring apparatus.
  
     Jack pot (Poker Playing), the name given to the stakes,
        contributions to which are made by each player
        successively, till such a hand is turned as shall take the
        "pot," which is the sum total of all the bets. See also
        jackpot.
  
     Jack rabbit (Zool.), any one of several species of large
        American hares, having very large ears and long legs. The
        California species ({Lepus Californicus), and that of
        Texas and New Mexico ({Lepus callotis), have the tail
        black above, and the ears black at the tip. They do not
        become white in winter. The more northern prairie hare
        ({Lepus campestris) has the upper side of the tail white,
        and in winter its fur becomes nearly white.
  
     Jack rafter (Arch.), in England, one of the shorter rafters
        used in constructing a hip or valley roof; in the United
        States, any secondary roof timber, as the common rafters
        resting on purlins in a trussed roof; also, one of the
        pieces simulating extended rafters, used under the eaves
        in some styles of building.
  
     Jack salmon (Zool.), the wall-eyed pike, or glasseye.
  
     Jack sauce, an impudent fellow. [Colloq. & Obs.]
  
     Jack shaft (Mach.), the first intermediate shaft, in a
        factory or mill, which receives power, through belts or
        gearing, from a prime mover, and transmits it, by the same
        means, to other intermediate shafts or to a line shaft.
  
     Jack sinker (Knitting Mach.), a thin iron plate operated by
        the jack to depress the loop of thread between two
        needles.
  
     Jack snipe. (Zool.) See in the Vocabulary.
  
     Jack staff (Naut.), a staff fixed on the bowsprit cap, upon
        which the jack is hoisted.
  
     Jack timber (Arch.), any timber, as a rafter, rib, or
        studding, which, being intercepted, is shorter than the
        others.
  
     Jack towel, a towel hung on a roller for common use.
  
     Jack truss (Arch.), in a hip roof, a minor truss used where
        the roof has not its full section.
  
     Jack tree. (Bot.) See 1st Jack, n.
  
     Jack yard (Naut.), a short spar to extend a topsail beyond
        the gaff.
        [1913 Webster]
  
     Blue jack, blue vitriol; sulphate of copper.
  
     Hydraulic jack, a jack used for lifting, pulling, or
        forcing, consisting of a compact portable hydrostatic
        press, with its pump and a reservoir containing a supply
        of liquid, as oil.
  
     Jack-at-a-pinch.
         (a) One called upon to take the place of another in an
             emergency.
         (b) An itinerant parson who conducts an occasional
             service for a fee.
  
     Jack-at-all-trades, one who can turn his hand to any kind
        of work.
  
     Jack-by-the-hedge (Bot.), a plant of the genus Erysimum
        ({Erysimum alliaria, or Alliaria officinalis), which
        grows under hedges. It bears a white flower and has a
        taste not unlike garlic. Called also, in England,
        sauce-alone. --Eng. Cyc.
  
     Jack-in-office, an insolent fellow in authority. --Wolcott.
  
     Jack-in-the-bush (Bot.), a tropical shrub with red fruit
        ({Cordia Cylindrostachya).
  
     Jack-in-the-green, a chimney sweep inclosed in a framework
        of boughs, carried in Mayday processions.
  
     Jack-of-the-buttery+(Bot.),+the+stonecrop+({Sedum+acre">Jack-of-the-buttery (Bot.), the stonecrop ({Sedum acre).
        
  
     Jack-of-the-clock, a figure, usually of a man, on old
        clocks, which struck the time on the bell.
  
     Jack-on-both-sides, one who is or tries to be neutral.
  
     Jack-out-of-office, one who has been in office and is
        turned out. --Shak.
  
     Jack the Giant Killer, the hero of a well-known nursery
        story.
  
     Yellow Jack (Naut.), the yellow fever; also, the quarantine
        flag. See Yellow flag, under Flag.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Quarantine \Quar"an*tine\, n. [F. quarantaine, OF. quaranteine,
     fr. F. quarante forty, L. quadraginta, akin to quattuor four,
     and E. four: cf. It. quarantina, quarentine. See Four, and
     cf. Quadragesima.]
     1. A space of forty days; -- used of Lent.
        [1913 Webster]
  
     2. Specifically, the term, originally of forty days, during
        which a ship arriving in port, and suspected of being
        infected a malignant contagious disease, is obliged to
        forbear all intercourse with the shore; hence, such
        restraint or inhibition of intercourse; also, the place
        where infected or prohibited vessels are stationed.
        [1913 Webster]
  
     Note: Quarantine is now applied also to any forced stoppage
           of travel or communication on account of malignant
           contagious disease, on land as well as by sea.
           [1913 Webster]
  
     3. (Eng. Law) The period of forty days during which the widow
        had the privilege of remaining in the mansion house of
        which her husband died seized.
        [1913 Webster]
  
     Quarantine flag, a yellow flag hoisted at the fore of a
        vessel or hung from a building, to give warning of an
        infectious disease; -- called also the yellow jack, and
        yellow flag.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Yellow \Yel"low\ (y[e^]l"l[-o]), a. [Compar. Yellower
     (y[e^]l"l[-o]*[~e]r); superl. Yellowest.] [OE. yelow,
     yelwe, [yogh]elow, [yogh]eoluw, from AS. geolu; akin to D.
     geel, OS. & OHG. gelo, G. gelb, Icel. gulr, Sw. gul, Dan.
     guul, L. helvus light bay, Gr. chlo`n young verdure, chlwro`s
     greenish yellow, Skr. hari tawny, yellowish. [root]49. Cf.
     Chlorine, Gall a bitter liquid, Gold, Yolk.]
     1. Being of a bright saffronlike color; of the color of gold
        or brass; having the hue of that part of the rainbow, or
        of the solar spectrum, which is between the orange and the
        green.
        [1913 Webster]
  
              Her yellow hair was browded [braided] in a tress.
                                                    --Chaucer.
        [1913 Webster]
  
              A sweaty reaper from his tillage brought
              First fruits, the green ear and the yellow sheaf.
                                                    --Milton.
        [1913 Webster]
  
              The line of yellow light dies fast away. --Keble.
        [1913 Webster]
  
     2. Cowardly; hence, dishonorable; mean; contemptible; as, he
        has a yellow streak. [Slang]
        [Webster 1913 Suppl.]
  
     3. Sensational; -- said of some newspapers, their makers,
        etc.; as, yellow journal, journalism, etc. [Colloq.]
        [Webster 1913 Suppl.]
  
     Yellow atrophy (Med.), a fatal affection of the liver, in
        which it undergoes fatty degeneration, and becomes rapidly
        smaller and of a deep yellow tinge. The marked symptoms
        are black vomit, delirium, convulsions, coma, and
        jaundice.
  
     Yellow bark, calisaya bark.
  
     Yellow bass (Zool.), a North American fresh-water bass
        ({Morone interrupta) native of the lower parts of the
        Mississippi and its tributaries. It is yellow, with
        several more or less broken black stripes or bars. Called
        also barfish.
  
     Yellow berry. (Bot.) Same as Persian berry, under
        Persian.
  
     Yellow boy, a gold coin, as a guinea. [Slang] --Arbuthnot.
  
     Yellow brier. (Bot.) See under Brier.
  
     Yellow bugle (Bot.), a European labiate plant ({Ajuga
        Chamaepitys).
  
     Yellow bunting (Zool.), the European yellow-hammer.
  
     Yellow cat (Zool.), a yellow catfish; especially, the
        bashaw.
  
     Yellow copperas (Min.), a hydrous sulphate of iron; --
        called also copiapite.
  
     Yellow copper ore, a sulphide of copper and iron; copper
        pyrites. See Chalcopyrite.
  
     Yellow cress (Bot.), a yellow-flowered, cruciferous plant
        ({Barbarea praecox), sometimes grown as a salad plant.
  
     Yellow dock. (Bot.) See the Note under Dock.
  
     Yellow earth, a yellowish clay, colored by iron, sometimes
        used as a yellow pigment.
  
     Yellow fever (Med.), a malignant, contagious, febrile
        disease of warm climates, attended with jaundice,
        producing a yellow color of the skin, and with the black
        vomit. See Black vomit, in the Vocabulary.
  
     Yellow flag, the quarantine flag. See under Quarantine,
        and 3d Flag.
  
     Yellow jack.
        (a) The yellow fever. See under 2d Jack.
        (b) The quarantine flag. See under Quarantine.
  
     Yellow jacket (Zool.), any one of several species of
        American social wasps of the genus Vespa, in which the
        color of the body is partly bright yellow. These wasps are
        noted for their irritability, and for their painful
        stings.
  
     Yellow lead ore (Min.), wulfenite.
  
     Yellow lemur (Zool.), the kinkajou.
  
     Yellow macauco (Zool.), the kinkajou.
  
     Yellow mackerel (Zool.), the jurel.
  
     Yellow metal. Same as Muntz metal, under Metal.
  
     Yellow ocher (Min.), an impure, earthy variety of brown
        iron ore, which is used as a pigment.
  
     Yellow oxeye (Bot.), a yellow-flowered plant
        ({Chrysanthemum segetum) closely related to the oxeye
        daisy.
  
     Yellow perch (Zool.), the common American perch. See
        Perch.
  
     Yellow pike (Zool.), the wall-eye.
  
     Yellow pine (Bot.), any of several kinds of pine; also,
        their yellowish and generally durable timber. Among the
        most common are valuable species are Pinus mitis and
        Pinus palustris of the Eastern and Southern States, and
        Pinus ponderosa and Pinus Arizonica of the Rocky
        Mountains and Pacific States.
  
     Yellow plover (Zool.), the golden plover.
  
     Yellow precipitate (Med. Chem.), an oxide of mercury which
        is thrown down as an amorphous yellow powder on adding
        corrosive sublimate to limewater.
  
     Yellow puccoon. (Bot.) Same as Orangeroot.
  
     Yellow rail (Zool.), a small American rail ({Porzana
        Noveboracensis) in which the lower parts are dull yellow,
        darkest on the breast. The back is streaked with brownish
        yellow and with black, and spotted with white. Called also
        yellow crake.
  
     Yellow rattle, Yellow rocket. (Bot.) See under Rattle,
        and Rocket.
  
     Yellow Sally (Zool.), a greenish or yellowish European
        stone fly of the genus Chloroperla; -- so called by
        anglers.
  
     Yellow sculpin (Zool.), the dragonet.
  
     Yellow snake (Zool.), a West Indian boa ({Chilobothrus
        inornatus) common in Jamaica. It becomes from eight to
        ten long. The body is yellowish or yellowish green, mixed
        with black, and anteriorly with black lines.
  
     Yellow spot.
        (a) (Anat.) A small yellowish spot with a central pit, the
            fovea centralis, in the center of the retina where
            vision is most accurate. See Eye.
        (b) (Zool.) A small American butterfly ({Polites Peckius)
            of the Skipper family. Its wings are brownish, with a
            large, irregular, bright yellow spot on each of the
            hind wings, most conspicuous beneath. Called also
            Peck's skipper. See Illust. under Skipper, n., 5.
            
  
     Yellow tit (Zool.), any one of several species of crested
        titmice of the genus Machlolophus, native of India. The
        predominating colors of the plumage are yellow and green.
        
  
     Yellow viper (Zool.), the fer-de-lance.
  
     Yellow warbler (Zool.), any one of several species of
        American warblers of the genus Dendroica in which the
        predominant color is yellow, especially Dendroica
        aestiva, which is a very abundant and familiar species;
        -- called also garden warbler, golden warbler, summer
        yellowbird, summer warbler, and yellow-poll warbler.
        
  
     Yellow wash (Pharm.), yellow oxide of mercury suspended in
        water, -- a mixture prepared by adding corrosive sublimate
        to limewater.
  
     Yellow wren (Zool.)
        (a) The European willow warbler.
        (b) The European wood warbler.
            [1913 Webster]

From WordNet (r) 3.0 (2006) :

  yellow jack
      n 1: caused by a flavivirus transmitted by a mosquito [syn:
           yellow jack, yellow fever, black vomit]
      2: yellow flag hoist on a ship in quarantine
      3: fish of western Atlantic and Gulf of Mexico [syn: yellow
         jack, Caranx bartholomaei]

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