(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. Xiphias gladius
‖prop. n. [ L., a swordfish, a sword-shaped comet, fr. Gr. xifi`as, fr. xi`fos a sword. ] 1. (Zool.) A genus of fishes comprising the common swordfish. [ 1913 Webster ]
2. (Anat.) (a) The constellation Dorado. (b) A comet shaped like a sword [ 1913 Webster ]