rhinoceroi

Noun

rhinoceros (plural rhinoceros or rhinoceroses or (uncommon) rhinocerosses or (nonstandard) rhinoceri or (nonstandard) rhinoceroi or (now rare) rhinocerotes)

1. Any large herbivorous ungulate mammal native to Africa and Asia of the family Rhinocerotidae, with thick, gray skin and one or two horns on their snouts.
   • Herein therefore to draw up our determinations beside the several pieces of Scripture mentioning this Animal (which some may well contend to be only meant of the Rhinoceros) we are so far from denying there is any Unicorn at all, that we affirme there are many kinds thereof. In the number of...1658, Thomas Brown, “Of Unicorns Horn”, in Pseudodoxia Epidemica: Or Enquiries Into Very many Received Tenents And commonly Presumed Truths. The Fourth Edition, page 203

   Synonyms:

   rhino, rhinocerotid

2. An ungulate mammal of the superfamily Rhinocerotoidea, including the hornless Paraceratherium.