- consisting of or divided into two parts.
- Botany. (of flowers) having two members in each whorl.
Origin of dimerous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dimerous
Dimerous insects are those that have two joints in all their tarsi.An Introduction to Entomology: Vol. III (of 4)
So in fuchsias, a very common deviation consists in a trimerous and rarely a dimerous symmetry of the flower.Vegetable Teratology
Maxwell T. Masters
Darwin afterwards gave a doubtful explanation of this, and concluded that the ovary is dimerous.More Letters of Charles Darwin Volume II
Dimerous and tetramerous symmetry occur also among dicotyledons.
Thus fig. 38 shows a pentamerous symmetrical flower, with dimerous pistil.
- consisting of or divided into two segments, as the tarsi of some insects
- (of flowers) having their floral parts arranged in whorls of two
C19: from New Latin dimerus, from Greek dimerēs, from di- 1 + meros part
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
- Consisting of two parts or segments, as the tarsus in certain insects.
- Having flower parts, such as petals, sepals, and stamens, in sets of two.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.