actinomorphic

[ ak-tin-oh-mawr-fik, ak-tuh-noh- ]

/ ækˌtɪn oʊˈmɔr fɪk, ˌæk tə noʊ- /

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adjective

Biology. having radial symmetry.

Botany. (of certain flowers, as the buttercup) divisible vertically into similar halves by each of a number of planes passing through the axis.

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Also ac·tin·o·mor·phous

[ak-tin-oh-mawr-fuhs, ak-tuh-noh-] /ækˌtɪn oʊˈmɔr fəs, ˌæk tə noʊ-/ .

Origin of actinomorphic

First recorded in 1895–1900; actino- + -morphic

OTHER WORDS FROM actinomorphic

ac·tin·o·mor·phy, noun

Words nearby actinomorphic

actinolite, actinology, Actinomadura, actinomere, actinometer, actinomorphic, actinomyces, Actinomyces bovis, Actinomyces israelii, Actinomycetaceae, Actinomycetales

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for actinomorphic

actinomorphic

actinomorphous

/ (ˌæktɪnəʊˈmɔːfɪk) /

adjective

botany (esp of a flower) having radial symmetry, as buttercupsSee also zygomorphic

Derived forms of actinomorphic

actinomorphy, 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

Scientific definitions for actinomorphic

actinomorphic

[ ăk′tə-nō-môr′fĭk ]

Relating to a flower that can be divided into equal halves along any diameter; radially symmetrical. The flowers of the rose and tulip are actinomorphic. Compare zygomorphic.