Definition of pentamerous
: divided into or consisting of five parts; specifically : having each floral whorl consisting of five or a multiple of five members
Origin and Etymology of pentamerous
New Latin pentamerus, from penta- (from Greek) + -merus -merous
First Known Use: 1821See Words from the same year
Seen and Heard
What made you want to look up pentamerous? Please tell us where you read or heard it (including the quote, if possible).