Aroid \Ar"oid\, n. [Arum + -oid.] (Bot.) Any plant of the Arum family (Arace[ae]).
Source: Webster's Revised Unabridged Dictionary (1913)
Aroid \A"roid\, Aroideous \A*roid"e*ous\, a. [Arum + -oid.] (Bot.) Belonging to, or resembling, the Arum family of plants.