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heptamerous

[hep-tam-er-uh s]
adjective
  1. consisting of or divided into seven parts.
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Origin of heptamerous

First recorded in 1780–90; hepta- + -merous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for heptamerous

heptamerous

adjective
  1. (esp of plant parts such as petals or sepals) arranged in groups of seven
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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