ac·​ti·​no·​mor·​phic ˌak-(ˌ)ti-nō-ˈmȯr-fik How to pronounce actinomorphic (audio)
: being radially symmetrical and capable of division by any longitudinal plane into essentially symmetrical halves
an actinomorphic tulip flower
actinomorphy noun

Word History


German actinomorph (from actino- actino- + -morph, borrowed from Greek -morphos -morphous) + -ic entry 1

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of actinomorphic was in 1881

Dictionary Entries Near actinomorphic

Cite this Entry

“Actinomorphic.” Dictionary, Merriam-Webster, Accessed 4 Jun. 2023.

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