Xiphius
Pronunciation : Xiph"i*us
Part of Speech : n.
Etymology : [NL., fr. Gr. xi`fos a sword.] (Zo?l.)
Definition : Defn: A genus of cetaceans having a long, pointed, bony beak, usually two tusklike teeth in the lower jaw, but no teeth in the upper jaw.
Source : Webster's Unabridged Dictionary, 1913