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xiphius |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Xiphius \Xiph"i*us\, n. [NL., fr Gr xi`fos a sword.] (Zo["o]l.) 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.