dimerous

[dim-er-uh s]

adjective

consisting of or divided into two parts.

Botany. (of flowers) having two members in each whorl.

Origin of dimerous

1820–30; < New Latin dimerus < Greek dimerḗs bipartite. See di-¹, -merous

Related formsdim·er·ism, nounun·dim·er·ous, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for dimerous

Historical Examples of dimerous

Dimerous insects are those that have two joints in all their tarsi.
An Introduction to Entomology: Vol. III (of 4)
William Kirby
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
Charles Darwin
Dimerous and tetramerous symmetry occur also among dicotyledons.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5
Various
Thus fig. 38 shows a pentamerous symmetrical flower, with dimerous pistil.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5
Various

British Dictionary definitions for dimerous

dimerous

adjective

consisting of or divided into two segments, as the tarsi of some insects

(of flowers) having their floral parts arranged in whorls of two

Derived Formsdimerism, noun

Word Origin for dimerous

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

dimerous in Science

dimerous

[dĭm′ər-əs]

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.