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8 definitions found
 for Leaf
From The Collaborative International Dictionary of English v.0.48 :

  Leaf \Leaf\ (l[=e]f), n.; pl. Leaves (l[=e]vz). [OE. leef,
     lef, leaf, AS. le['a]f; akin to S. l[=o]f, OFries. laf, D.
     loof foliage, G. laub, OHG. loub leaf, foliage, Icel. lauf,
     Sw. l["o]f, Dan. l["o]v, Goth. laufs; cf. Lith. lapas. Cf.
     Lodge.]
     1. (Bot.) A colored, usually green, expansion growing from
        the side of a stem or rootstock, in which the sap for the
        use of the plant is elaborated under the influence of
        light; one of the parts of a plant which collectively
        constitute its foliage.
        [1913 Webster]
  
     Note: Such leaves usually consist of a blade, or lamina,
           supported upon a leafstalk or petiole, which, continued
           through the blade as the midrib, gives off woody ribs
           and veins that support the cellular texture. The
           petiole has usually some sort of an appendage on each
           side of its base, which is called the stipule. The
           green parenchyma of the leaf is covered with a thin
           epiderm pierced with closable microscopic openings,
           known as stomata.
           [1913 Webster]
  
     2. (Bot.) A special organ of vegetation in the form of a
        lateral outgrowth from the stem, whether appearing as a
        part of the foliage, or as a cotyledon, a scale, a bract,
        a spine, or a tendril.
        [1913 Webster]
  
     Note: In this view every part of a plant, except the root and
           the stem, is either a leaf, or is composed of leaves
           more or less modified and transformed.
           [1913 Webster]
  
     3. Something which is like a leaf in being wide and thin and
        having a flat surface, or in being attached to a larger
        body by one edge or end; as:
        (a) A part of a book or folded sheet containing two pages
            upon its opposite sides.
        (b) A side, division, or part, that slides or is hinged,
            as of window shutters, folding doors, etc.
        (c) The movable side of a table.
        (d) A very thin plate; as, gold leaf.
        (e) A portion of fat lying in a separate fold or layer.
        (f) One of the teeth of a pinion, especially when small.
            [1913 Webster]
  
     Leaf beetle (Zool.), any beetle which feeds upon leaves;
        esp., any species of the family Chrysomelid[ae], as the
        potato beetle and helmet beetle.
  
     Leaf bridge, a draw-bridge having a platform or leaf which
        swings vertically on hinges.
  
     Leaf bud (Bot.), a bud which develops into leaves or a
        leafy branch.
  
     Leaf butterfly (Zool.), any butterfly which, in the form
        and colors of its wings, resembles the leaves of plants
        upon which it rests; esp., butterflies of the genus
        Kallima, found in Southern Asia and the East Indies.
  
     Leaf+crumpler+(Zool.),+a+small+moth+({Phycis+indigenella">Leaf crumpler (Zool.), a small moth ({Phycis indigenella),
        the larva of which feeds upon leaves of the apple tree,
        and forms its nest by crumpling and fastening leaves
        together in clusters.
  
     Leaf fat, the fat which lies in leaves or layers within the
        body of an animal.
  
     Leaf flea (Zool.), a jumping plant louse of the family
        Psyllid[ae].
  
     Leaf frog (Zool.), any tree frog of the genus
        Phyllomedusa.
  
     Leaf green.(Bot.) See Chlorophyll.
  
     Leaf hopper (Zool.), any small jumping hemipterous insect
        of the genus Tettigonia, and allied genera. They live
        upon the leaves and twigs of plants. See Live hopper.
  
     Leaf insect (Zool.), any one of several genera and species
        of orthopterous insects, esp. of the genus Phyllium, in
        which the wings, and sometimes the legs, resemble leaves
        in color and form. They are common in Southern Asia and
        the East Indies.
  
     Leaf lard, lard from leaf fat. See under Lard.
  
     Leaf louse (Zool.), an aphid.
  
     Leaf metal, metal in thin leaves, as gold, silver, or tin.
        
  
     Leaf miner (Zool.), any one of various small lepidopterous
        and dipterous insects, which, in the larval stages, burrow
        in and eat the parenchyma of leaves; as, the pear-tree
        leaf miner ({Lithocolletis geminatella).
  
     Leaf notcher (Zool.), a pale bluish green beetle ({Artipus
        Floridanus), which, in Florida, eats the edges of the
        leaves of orange trees.
  
     Leaf roller (Zool.), See leaf roller in the vocabulary.
        
  
     Leaf scar (Bot.), the cicatrix on a stem whence a leaf has
        fallen.
  
     Leaf sewer (Zool.), a tortricid moth, whose caterpillar
        makes a nest by rolling up a leaf and fastening the edges
        together with silk, as if sewn; esp., Phoxopteris
        nubeculana, which feeds upon the apple tree.
  
     Leaf sight, a hinged sight on a firearm, which can be
        raised or folded down.
  
     Leaf trace (Bot.), one or more fibrovascular bundles, which
        may be traced down an endogenous stem from the base of a
        leaf.
  
     Leaf tier (Zool.), a tortricid moth whose larva makes a
        nest by fastening the edges of a leaf together with silk;
        esp., Teras cinderella, found on the apple tree.
  
     Leaf valve, a valve which moves on a hinge.
  
     Leaf wasp (Zool.), a sawfly.
  
     To turn over a new leaf, to make a radical change for the
        better in one's way of living or doing. [Colloq.]
        [1913 Webster]
  
              They were both determined to turn over a new leaf.
                                                    --Richardson.
        [1913 Webster] Leaf

From The Collaborative International Dictionary of English v.0.48 :

  Leaf \Leaf\, Leaf out \Leaf out\(l[=e]f), v. i. [imp. & p. p.
     Leafed (l[=e]ft); p. pr. & vb. n. Leafing.]
     To shoot out leaves; to produce leaves; to leave; as, the
     trees leaf in May. --Sir T. Browne.
     [1913 Webster]

From WordNet (r) 3.0 (2006) :

  leaf
      n 1: the main organ of photosynthesis and transpiration in
           higher plants [syn: leaf, leafage, foliage]
      2: a sheet of any written or printed material (especially in a
         manuscript or book) [syn: leaf, folio]
      3: hinged or detachable flat section (as of a table or door)
      v 1: look through a book or other written material; "He thumbed
           through the report"; "She leafed through the volume" [syn:
           flick, flip, thumb, riffle, leaf, riff]
      2: turn over pages; "leaf through a book"; "leaf a manuscript"
      3: produce leaves, of plants

From Moby Thesaurus II by Grady Ward, 1.0 :

  160 Moby Thesaurus words for "leaf":
     Burley, Cuban, Havana, Havana seed, Latakia, Maryland, Russian,
     Turkish, Virginia, acknowledgments, back, back matter,
     bastard title, bibliography, blade, bract, bracteole, bractlet,
     bright, bud, burgeon, burst forth, canaster, cardboard, catch line,
     catchword, coat, coating, collop, colophon, contents,
     contents page, copyright page, cotyledon, covering, cut, deal,
     dedication, disk, endleaf, endpaper, endsheet, errata, feuille,
     film, flag, flap, floral leaf, flourish, flue-cured, flyleaf, foil,
     fold, folio, foliole, fore edge, foreword, frond, front matter,
     gemmate, germinate, glume, grow, grow rank, half-title page, head,
     imprint, index, inscription, introduction, involucre, involucrum,
     lamella, lamina, laminated glass, laminated wood, lap, leaf out,
     leaflet, leave, lemma, ligule, lugs, luxuriate, makeup, membrane,
     needle, overgrow, overrun, page, pane, panel, paper, patina, peel,
     pellicle, petal, pile, pine needle, plait, plank, plate, plating,
     plug tobacco, ply, plywood, preface, preliminaries, pullulate,
     put forth, put forth leaves, put out buds, quire, rasher, ream,
     recto, reverso, riot, root, running title, safety glass, scum,
     seconds, seed leaf, sepal, shag, sheet, shoot, shoot up, signature,
     skin, slab, slat, slice, spathe, spear, spire, sprout, sprout up,
     stationery, stipula, stipule, strike root, subtitle, table,
     table of contents, tablet, tail, take root, text, title,
     title page, trim size, type page, upspear, upsprout, vegetate,
     veneer, verso, wafer
  
  

From V.E.R.A. -- Virtual Entity of Relevant Acronyms (September 2014) :

  LEAF
         Law Enforcement Access Field (EES, cryptography)
         

From The Free On-line Dictionary of Computing (18 March 2015) :

  leaf
  leaves
  terminal node
  
      (Or "terminal node") In a tree, a node
     which has no daughter.
  
     (1998-11-14)
  

From The Free On-line Dictionary of Computing (18 March 2015) :

  LEAF
  
      1. LISP Extended Algebraic Facility.
  
     2. "LEAF: A Language which Integrates Logic, Equations and
     Functions", R.  Barbuti et al in Logic Programming, Functions
     Relations and Equations, D.  DeGroot et al eds, P-H 1986,
     pp.201-238.
  

From Easton's 1897 Bible Dictionary :

  Leaf
     of a tree. The olive-leaf mentioned Gen. 8:11. The barren
     fig-tree had nothing but leaves (Matt. 21:19; Mark 11:13). The
     oak-leaf is mentioned Isa. 1:30; 6:13. There are numerous
     allusions to leaves, their flourishing, their decay, and their
     restoration (Lev. 26:36; Isa. 34:4; Jer. 8:13; Dan. 4:12, 14,
     21; Mark 11:13; 13:28). The fresh leaf is a symbol of prosperity
     (Ps. 1:3; Jer. 17:8; Ezek. 47:12); the faded, of decay (Job
     13:25; Isa. 1:30; 64:6; Jer. 8:13).
     
       Leaf of a door (1 Kings 6:34), the valve of a folding door.
     
       Leaf of a book (Jer. 36:23), perhaps a fold of a roll.
     

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