[ pen-tam-er-uh s ]
/ pɛnˈtæm ər əs /


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


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Origin of pentamerous

From the New Latin word pentamerus, dating back to 1820–30. See penta-, -merous

OTHER WORDS FROM pentamerous

pen·tam·er·ism, pen·tam·er·y, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for pentamerous

British Dictionary definitions for pentamerous

/ (pɛnˈtæmərəs) /


consisting of five parts, esp (of flowers) having the petals, sepals, and other parts arranged in groups of five

Derived forms of pentamerous

pentamerism, 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