zygomorphic

or zy·go·mor·phous

[zahy-guh-mawr-fik, zig-uh-]

adjective Biology.

having bilateral symmetry; divisible lengthwise into similar or symmetrical halves.

Origin of zygomorphic

First recorded in 1870–75; zygo- + -morphic

Related formszy·go·mor·phism, zy·go·mor·phy, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for zygomorphic

Historical Examples of zygomorphic

The flowers are always more or less bilaterally symmetrical (zygomorphic).
Elements of Structural and Systematic Botany
Douglas Houghton Campbell
When a flower can be divided by a single plane into two exactly similar parts; then it is said to be zygomorphic.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5
Various
In Pelargonium the flower is zygomorphic with a spurred posterior sepal and the petals differing in size or shape.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 7
Various

British Dictionary definitions for zygomorphic

zygomorphic

zygomorphous

adjective

(of a flower) capable of being cut in only one plane so that the two halves are mirror imagesSee also actinomorphic

Derived Formszygomorphism or zygomorphy, 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

zygomorphic in Medicine

zygomorphic

[zī′gə-môr′fĭk, zĭg′ə-]

adj.

Bilaterally symmetrical. Used of organisms or parts.

zygomorphic in Science

zygomorphic

[zī′gə-môr′fĭk, zĭg′ə-]

Relating to a flower that can be divided into equal halves along only one line; bilaterally symmetrical. The flowers of the iris and the snapdragon are zygomorphic. Compare actinomorphic.