actinomorphic

Also ac·tin·o·mor·phous

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

adjective

1. Biology.,  having radial symmetry.

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

actinomorphic

/ ˌæktɪnəʊˈmɔːfɪk /

adjective

1. botany (esp of a flower) having radial symmetry, as buttercups See also zygomorphic

actinomorphic

1. 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.

2. Compare zygomorphic

Other Word Forms

• actinomorphy noun

Word History and Origins

Origin of actinomorphic¹

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

Example Sentences

In contrast with this are polysymmetrical or actinomorphic flowers, which have a radial symmetry and can be divided by several planes into several exactly similar portions; such are all regular, symmetrical flowers.

From Project Gutenberg