[pen-tam-er-uh s]


consisting of or divided into five parts.
Botany. (of flowers) having five members in each whorl.

Origin of pentamerous

From the New Latin word pentamerus, dating back to 1820–30. See penta-, -merous
Related formspen·tam·er·ism, pen·tam·er·y, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for pentamerous

quintuple, quinary, quinate, quinquennial

Examples from the Web for pentamerous

Historical Examples of pentamerous

British Dictionary definitions for pentamerous



consisting of five parts, esp (of flowers) having the petals, sepals, and other parts arranged in groups of five
Derived Formspentamerism, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012