Pliohippus
Pli`o*hip"pus\, n. [NL., fr. E. pliocene + Gr. ? horse.] (Paleon.) An extinct genus of horses from the Pliocene deposits. Each foot had a single toe (or hoof), as in the common horse.| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a fool or simpleton; ninny. |
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