Definition of pachydermous in US English:

pachydermous

adjective

  • 1Pachydermatous; (figurative) thick-skinned.

  • 2Botany. Of the capsule of a moss: thick-walled.

Origin

Mid 19th century; earliest use found in Encyclopaedia Britannica. From pachyderm + -ous.

Pronunciation

pachydermous

/ˌpakɪˈdəːməs/