Dictionary

pentamerous

adjective pen·tam·er·ous \pen-ˈta-mə-rəs\

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 of PENTAMEROUS

New Latin pentamerus, from penta- (from Greek) + -merus -merous
First Known Use: 1821

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