noun see: derm- Date: 1838 any of various nonruminant mammals (as an elephant, a rhinoceros, or a hippopotamus) of a former group (Pachydermata) that have hooves or nails resembling hooves and usually thick skin
PACHYDERM
Meaning of PACHYDERM in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012