资料来源 : Webster's Revised Unabridged Dictionary (1913)

Swordfish \Sword"fish`\, n.
   1. (Zo["o]l.)
      (a) A very large oceanic fish ({Xiphias gladius}), the
          only representative of the family {Xiphiid[ae]}. It is
          highly valued as a food fish. The bones of the upper
          jaw are consolidated, and form a long, rigid,
          swordlike beak; the dorsal fin is high and without
          distinct spines; the ventral fins are absent. The
          adult is destitute of teeth. It becomes sixteen feet
          or more long.
      (b) The gar pike.
      (c) The cutlass fish.

   2. (Astron.) A southern constellation. See {Dorado}, 1.

   {Swordfish sucker} (Zo["o]l.), a remora ({Remora
      brachyptera}) which attaches itself to the swordfish.

资料来源 : WordNet®

Xiphias gladius
     n : large toothless marine food fish with a long swordlike upper
         jaw; not completely cold-blooded i.e. they are able to
         warm their brains and eyes: worldwide in warm waters but
         feed on cold ocean floor coming to surface at night [syn:
          {swordfish}]