Noun: pachyderm 'pa-ki,durm
- Any of various nonruminant hoofed mammals having very thick skin: elephant, rhinoceros, hippopotamus
"The term pachyderm is often used to describe elephants, though it's no longer used in scientific classification"
Derived forms: pachyderms
Type of: eutherian, eutherian mammal, placental, placental mammal
Encyclopedia: Pachyderm