Source : Webster's Revised Unabridged Dictionary (1913)

Bay \Bay\, v. i. [imp. & p. p. {Bayed} (?); p. pr. & vb. n.
   {Baying}.] [ OE. bayen, abayen, OF. abaier, F. aboyer, to
   bark; of uncertain origin.]
   To bark, as a dog with a deep voice does, at his game.

         The hounds at nearer distance hoarsely bayed. --Dryden.

Bay \Bay\, v. t.
   To bark at; hence, to follow with barking; to bring or drive
   to bay; as, to bay the bear. --Shak.

Bay \Bay\, n. [See {Bay}, v. i.]
   1. Deep-toned, prolonged barking. ``The bay of curs.''
      --Cowper.

   2. [OE. bay, abay, OF. abai, F. aboi barking, pl. abois,
      prop. the extremity to which the stag is reduced when
      surrounded by the dogs, barking (aboyant); aux abois at
      bay.] A state of being obliged to face an antagonist or a
      difficulty, when escape has become impossible.

            Embolden'd by despair, he stood at bay. --Dryden.

            The most terrible evils are just kept at bay by
            incessant efforts.                    --I. Taylor

Bay \Bay\, a. [F. bai, fr. L. badius brown, chestnutcolored; --
   used only of horses.]
   Reddish brown; of the color of a chestnut; -- applied to the
   color of horses.

   {Bay cat} (Zo["o]l.), a wild cat of Africa and the East
      Indies ({Felis aurata}).

   {Bay lynx} (Zo["o]l.), the common American lynx ({Felis, or
      Lynx, rufa}).

Bay \Bay\, n. [F. baie a berry, the fruit of the laurel and
   other trees, fr. L. baca, bacca, a small round fruit, a
   berry, akin to Lith. bapka laurel berry.]
   1. A berry, particularly of the laurel. [Obs.]

   2. The laurel tree ({Laurus nobilis}). Hence, in the plural,
      an honorary garland or crown bestowed as a prize for
      victory or excellence, anciently made or consisting of
      branches of the laurel.

            The patriot's honors and the poet's bays.
                                                  --Trumbull.

   3. A tract covered with bay trees. [Local, U. S.]

   {Bay leaf}, the leaf of the bay tree ({Laurus nobilis}). It
      has a fragrant odor and an aromatic taste.

Bay \Bay\, n. [F. baie, fr. LL. baia. Of uncertain origin: cf.
   Ir. & Gael. badh or bagh bay harbor, creek; Bisc. baia,
   baiya, harbor, and F. bayer to gape, open the mouth.]
   1. (Geol.) An inlet of the sea, usually smaller than a gulf,
      but of the same general character.

   Note: The name is not used with much precision, and is often
         applied to large tracts of water, around which the land
         forms a curve; as, Hudson's Bay. The name is not
         restricted to tracts of water with a narrow entrance,
         but is used foe any recess or inlet between capes or
         headlands; as, the Bay of Biscay.

   2. A small body of water set off from the main body; as a
      compartment containing water for a wheel; the portion of a
      canal just outside of the gates of a lock, etc.

   3. A recess or indentation shaped like a bay.

   4. A principal compartment of the walls, roof, or other part
      of a building, or of the whole building, as marked off by
      the buttresses, vaulting, mullions of a window, etc.; one
      of the main divisions of any structure, as the part of a
      bridge between two piers.

   5. A compartment in a barn, for depositing hay, or grain in
      the stalks.

   6. A kind of mahogany obtained from Campeachy Bay.

   {Sick bay}, in vessels of war, that part of a deck
      appropriated to the use of the sick. --Totten.

Bay \Bay\, v. t. [Cf. OE. b[ae]wen to bathe, and G. b["a]hen to
   foment.]
   To bathe. [Obs.] --Spenser.

Bay \Bay\, v. t.
   To dam, as water; -- with up or back.

Bay \Bay\, n.
   A bank or dam to keep back water.

Source : WordNet®

bay
     adj : (used of animals especially a horse) of a moderate
           reddish-brown color

bay
     n 1: an indentation of a shoreline larger than a cove but smaller
          than a gulf
     2: the sound of a hound on the scent
     3: small Mediterranean evergreen tree with small blackish
        berries and glossy aromatic leaves used for flavoring in
        cooking; also used by ancient Greeks to crown victors
        [syn: {true laurel}, {bay laurel}, {bay tree}, {Laurus
        nobilis}]
     4: a compartment on a ship between decks; often used as a
        hospital; "they put him in the sick bay"
     5: a compartment in an aircraft used for some specific purpose;
        "he opened the bomb bay"
     6: a small recess opening off a larger room [syn: {alcove}]
     7: a horse of a moderate reddish-brown color

bay
     v 1: utter in deep prolonged tones
     2: bark with prolonged noises, of dogs [syn: {quest}]

Source : Free On-Line Dictionary of Computing

bay
     
         (As in an aeroplane "cargo bay") A space in a
        cabinet into which a device of a certain size can be
        physically mounted and connected to power and data.
     
        Common examples are a "drive bay" into which a {disk drive}
        (usually either 3.5 inch or 5.25 inch) can be inserted or the
        space in a {docking station} where you insert a {notebook
        computer} or {laptop computer} to work in desktop mode or to
        charge their batteries, print, or connect to the office
        network, etc.
     
        (1999-01-11)