'Proboscidian' definitions:

Definition of 'proboscidian'

noun

Massive herbivorous mammals having tusks and a long trunk [syn: proboscidean, proboscidian]

From: GCIDE

Proboscidian \Pro`bos*cid"i*an\, a. (Zool.) Pertaining to the Proboscidea. -- n. One of the Proboscidea. [1913 Webster]