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

  Equatorial \E`qua*to"ri*al\, a. [Cf. F. ['e]quatorial.]
     Of or pertaining to the equator; as, equatorial climates;
     also, pertaining to an equatorial instrument.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Equatorial \E`qua*to"ri*al\, n. (Astron.)
     An instrument consisting of a telescope so mounted as to have
     two axes of motion at right angles to each other, one of them
     parallel to the axis of the earth, and each carrying a
     graduated circle, the one for measuring declination, and the
     other right ascension, or the hour angle, so that the
     telescope may be directed, even in the daytime, to any star
     or other object whose right ascension and declination are
     known. The motion in right ascension is sometimes
     communicated by clockwork, so as to keep the object
     constantly in the field of the telescope. Called also an
     equatorial telescope.
     [1913 Webster]
     Note: The term equatorial, or equatorial instrument, is
           sometimes applied to any astronomical instrument which
           has its principal axis of rotation parallel to the axis
           of the earth.
           [1913 Webster]

From WordNet (r) 3.0 (2006) :

      adj 1: of or relating to or at an equator; "equatorial diameter"
      2: of or relating to conditions at the geographical equator;
         "equatorial heat"
      3: of or existing at or near the geographic equator; "equatorial
         Africa" [ant: polar]
      n 1: a telescope whose mounting has only two axes of motion, one
           parallel to the Earth's axis and the other one at right
           angles to it

From Moby Thesaurus II by Grady Ward, 1.0 :

  49 Moby Thesaurus words for "equatorial":
     aestival, amidships, average, blood-hot, blood-warm, calid,
     central, core, equidistant, genial, halfway, interior,
     intermediary, intermediate, luke, lukewarm, mean, medial, median,
     mediocre, mediterranean, medium, mesial, mezzo, mid, middle,
     middlemost, middling, midland, midmost, midships, midway, mild,
     nuclear, room-temperature, subtropical, summery, sunny, sunshiny,
     temperate, tepid, thermal, thermic, toasty, tropical, unfrozen,
     warm, warm as toast, warmish

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