DICT.TW Dictionary Taiwan
216.73.216.135

Search for:
[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found
From: Webster's Revised Unabridged Dictionary (1913)
 Ris·soid n.  Zool. Any one of very numerous species of small spiral gastropods of the genus Rissoa, or family Rissoidae, found both in fresh and salt water.