| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| xiphioid | adjective | Of, pertaining to, or resembling, a cetacean of the genus Xiphius or family Xiphiidae. |
| xiphodon | noun | An extinct genus of artiodactylous mammals found in the European Tertiary formations. It had slender legs, didactylous feet, and small canine teeth. |