The Collaborative International Dictionary of English v.0.48:

Gutta \Gut"ta\, n.; pl. Guttae. [L.]
   1. A drop.
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   2. (Arch.) One of a series of ornaments, in the form of a
      frustum of a cone, attached to the lower part of the
      triglyphs, and also to the lower faces of the mutules, in
      the Doric order; -- called also campana, and drop.
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   Gutta serena [L., lit. serene or clear drop] (Med.),
      amaurosis.

   Gutt[ae] band (Arch.), the listel or band from which the
      gutt[ae] hang.
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The Collaborative International Dictionary of English v.0.48:

Drop \Drop\, v. t. [imp. & p. p. Droppedor Dropt; p. pr. &
   vb. n. Dropping.] [OE. droppen, AS. dropan, v. i. See
   Drop, n.]
   1. To pour or let fall in drops; to pour in small globules;
      to distill. "The trees drop balsam." --Creech.
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            The recording angel, as he wrote it down, dropped a
            tear upon the word and blotted it out forever.
                                                  --Sterne.
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   2. To cause to fall in one portion, or by one motion, like a
      drop; to let fall; as, to drop a line in fishing; to drop
      a courtesy.
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   3. To let go; to dismiss; to set aside; to have done with; to
      discontinue; to forsake; to give up; to omit.
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            They suddenly drop't the pursuit.     --S. Sharp.
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            That astonishing ease with which fine ladies drop
            you and pick you up again.            --Thackeray.
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            The connection had been dropped many years. -- Sir
                                                  W. Scott.
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            Dropping the too rough H in Hell and Heaven.
                                                  --Tennyson.
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   4. To bestow or communicate by a suggestion; to let fall in
      an indirect, cautious, or gentle manner; as, to drop hint,
      a word of counsel, etc.
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   5. To lower, as a curtain, or the muzzle of a gun, etc.
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   6. To send, as a letter; as, please drop me a line, a letter,
      word.
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   7. To give birth to; as, to drop a lamb.
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   8. To cover with drops; to variegate; to bedrop.
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            Show to the sun their waved coats dropped with gold.
                                                  --Milton.
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   To drop a vessel (Naut.), to leave it astern in a race or a
      chase; to outsail it.
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The Collaborative International Dictionary of English v.0.48:

Drop \Drop\ (dr[o^]p), n. [OE. drope, AS. dropa; akin to OS.
   dropo, D. drop, OHG. tropo, G. tropfen, Icel. dropi, Sw.
   droppe; and Fr. AS. dre['o]pan to drip, drop; akin to OS.
   driopan, D. druipen, OHG. triofan, G. triefen, Icel.
   drj[=u]pa. Cf. Drip, Droop.]
   1. The quantity of fluid which falls in one small spherical
      mass; a liquid globule; a minim; hence, also, the smallest
      easily measured portion of a fluid; a small quantity; as,
      a drop of water.
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            With minute drops from off the eaves. --Milton.
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            As dear to me as are the ruddy drops
            That visit my sad heart.              -- Shak.
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            That drop of peace divine.            --Keble.
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   2. That which resembles, or that which hangs like, a liquid
      drop; as a hanging diamond ornament, an earring, a glass
      pendant on a chandelier, a sugarplum (sometimes
      medicated), or a kind of shot or slug.
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   3. (Arch.)
      (a) Same as Gutta.
      (b) Any small pendent ornament.
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   4. Whatever is arranged to drop, hang, or fall from an
      elevated position; also, a contrivance for lowering
      something; as:
      (a) A door or platform opening downward; a trap door; that
          part of the gallows on which a culprit stands when he
          is to be hanged; hence, the gallows itself.
      (b) A machine for lowering heavy weights, as packages,
          coal wagons, etc., to a ship's deck.
      (c) A contrivance for temporarily lowering a gas jet.
      (d) A curtain which drops or falls in front of the stage
          of a theater, etc.
      (e) A drop press or drop hammer.
      (f) (Mach.) The distance of the axis of a shaft below the
          base of a hanger.
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   5. pl. Any medicine the dose of which is measured by drops;
      as, lavender drops.
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   6. (Naut.) The depth of a square sail; -- generally applied
      to the courses only. --Ham. Nav. Encyc.
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   7. Act of dropping; sudden fall or descent.
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   Ague drop, Black drop. See under Ague, Black.

   Drop by drop, in small successive quantities; in repeated
      portions. "Made to taste drop by drop more than the
      bitterness of death." --Burke.

   Drop curtain. See Drop, n., 4.
      (d) .

   Drop forging. (Mech.)
      (a) A forging made in dies by a drop hammer.
      (b) The process of making drop forgings.

   Drop hammer (Mech.), a hammer for forging, striking up
      metal, etc., the weight being raised by a strap or similar
      device, and then released to drop on the metal resting on
      an anvil or die.

   Drop kick (Football), a kick given to the ball as it
      rebounds after having been dropped from the hands.

   Drop lake, a pigment obtained from Brazil wood. --Mollett.

   Drop letter, a letter to be delivered from the same office
      where posted.

   Drop press (Mech.), a drop hammer; sometimes, a dead-stroke
      hammer; -- also called drop.

   Drop scene, a drop curtain on which a scene is painted. See
      Drop, n., 4.
      (d) .

   Drop seed. (Bot.) See the List under Glass.

   Drop serene. (Med.) See Amaurosis.
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The Collaborative International Dictionary of English v.0.48:

Drop \Drop\, v. i.
   1. To fall in drops.
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            The kindly dew drops from the higher tree,
            And wets the little plants that lowly dwell.
                                                  --Spenser.
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   2. To fall, in general, literally or figuratively; as, ripe
      fruit drops from a tree; wise words drop from the lips.
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            Mutilations of which the meaning has dropped out of
            memory.                               --H. Spencer.
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            When the sound of dropping nuts is heard. --Bryant.
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   3. To let drops fall; to discharge itself in drops.
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            The heavens . . . dropped at the presence of God.
                                                  --Ps. lxviii.
                                                  8.
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   4. To fall dead, or to fall in death; as, dropping like
      flies.
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            Nothing, says Seneca, so soon reconciles us to the
            thoughts of our own death, as the prospect of one
            friend after another dropping round us. --Digby.
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   5. To come to an end; to cease; to pass out of mind; as, the
      affair dropped. --Pope.
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   6. To come unexpectedly; -- with in or into; as, my old
      friend dropped in a moment. --Steele.
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            Takes care to drop in when he thinks you are just
            seated.                               --Spectator.
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   7. To fall or be depressed; to lower; as, the point of the
      spear dropped a little.
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   8. To fall short of a mark. [R.]
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            Often it drops or overshoots by the disproportion of
            distance.                             --Collier.
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   9. To be deep in extent; to descend perpendicularly; as, her
      main topsail drops seventeen yards.
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   To drop astern (Naut.), to go astern of another vessel; to
      be left behind; to slacken the speed of a vessel so as to
      fall behind and to let another pass a head.

   To drop down (Naut.), to sail, row, or move down a river,
      or toward the sea.

   To drop off, to fall asleep gently; also, to die. [Colloq.]
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WordNet (r) 3.0 (2006):

drop
    n 1: a shape that is spherical and small; "he studied the shapes
         of low-viscosity drops"; "beads of sweat on his forehead"
         [syn: drop, bead, pearl]
    2: a small indefinite quantity (especially of a liquid); "he had
       a drop too much to drink"; "a drop of each sample was
       analyzed"; "there is not a drop of pity in that man"; "years
       afterward, they would pay the blood-money, driblet by
       driblet"--Kipling [syn: drop, drib, driblet]
    3: a sudden sharp decrease in some quantity; "a drop of 57
       points on the Dow Jones index"; "there was a drop in pressure
       in the pulmonary artery"; "a dip in prices"; "when that
       became known the price of their stock went into free fall"
       [syn: drop, dip, fall, free fall]
    4: a steep high face of rock; "he stood on a high cliff
       overlooking the town"; "a steep drop" [syn: cliff, drop,
       drop-off]
    5: a predetermined hiding place for the deposit and distribution
       of illicit goods (such as drugs or stolen property)
    6: a free and rapid descent by the force of gravity; "it was a
       miracle that he survived the drop from that height" [syn:
       drop, fall]
    7: a curtain that can be lowered and raised onto a stage from
       the flies; often used as background scenery [syn: drop
       curtain, drop cloth, drop]
    8: a central depository where things can be left or picked up
    9: the act of dropping something; "they expected the drop would
       be successful"
    v 1: let fall to the ground; "Don't drop the dishes"
    2: to fall vertically; "the bombs are dropping on enemy targets"
    3: go down in value; "Stock prices dropped"
    4: fall or descend to a lower place or level; "He sank to his
       knees" [syn: sink, drop, drop down]
    5: terminate an association with; "drop him from the Republican
       ticket"
    6: utter with seeming casualness; "drop a hint"; drop names"
    7: stop pursuing or acting; "drop a lawsuit"; "knock it off!"
       [syn: drop, knock off]
    8: leave or unload; "unload the cargo"; "drop off the passengers
       at the hotel" [syn: drop, drop off, set down, put
       down, unload, discharge]
    9: cause to fall by or as if by delivering a blow; "strike down
       a tree"; "Lightning struck down the hikers" [syn: fell,
       drop, strike down, cut down]
    10: lose (a game); "The Giants dropped 11 of their first 13"
    11: pay out; "spend money" [syn: spend, expend, drop]
    12: lower the pitch of (musical notes) [syn: flatten, drop]
        [ant: sharpen]
    13: hang freely; "the ornaments dangled from the tree"; "The
        light dropped from the ceiling" [syn: dangle, swing,
        drop]
    14: stop associating with; "They dropped her after she had a
        child out of wedlock" [syn: dismiss, send packing, send
        away, drop]
    15: let or cause to fall in drops; "dribble oil into the
        mixture" [syn: dribble, drip, drop]
    16: get rid of; "he shed his image as a pushy boss"; "shed your
        clothes" [syn: shed, cast, cast off, shake off,
        throw, throw off, throw away, drop]
    17: take (a drug, especially LSD), by mouth; "She dropped acid
        when she was a teenager"
    18: omit (a letter or syllable) in speaking or writing; " New
        Englanders drop their post-vocalic r's"
    19: leave undone or leave out; "How could I miss that typo?";
        "The workers on the conveyor belt miss one out of ten" [syn:
        neglect, pretermit, omit, drop, miss, leave out,
        overlook, overleap] [ant: attend to, take to heart]
    20: change from one level to another; "She dropped into army
        jargon"
    21: fall or sink into a state of exhaustion or death; "shop til
        you drop"
    22: grow worse; "Her condition deteriorated"; "Conditions in the
        slums degenerated"; "The discussion devolved into a shouting
        match" [syn: devolve, deteriorate, drop, degenerate]
        [ant: convalesce, recover, recuperate]
    23: give birth; used for animals; "The cow dropped her calf this
        morning"