Pronunciation: (prō"bu-sid'ē-un, -bo-, prō-bos"i-dē'un), [key]
1. pertaining to or resembling a proboscis.
2. having a proboscis.
3. belonging or pertaining to the mammals of the order Proboscidea, characterized by a flexible trunk formed of the nostrils and upper lip, large tusks, a massive body, and columnar legs, comprising the elephant and the now-extinct mammoth and mastodon.
a proboscidean animal. Also,pro"bos•cid'i•an.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.