diactine

noun
di·​ac·​tine | \ (ˈ)dīˈakˌtīn, -tə̇n \
variants: or diact \ ˈdīˌakt \ or less commonly diactin \ (ˈ)dīˈaktə̇n \
plural -s

Definition of diactine

: a sponge spicule having two pointed arms

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History and Etymology for diactine

di- + Greek aktin-, aktis ray

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Dictionary Entries Near diactine

diactinal

diactine

diactinic

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Cite this Entry

“Diactine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diactine. Accessed 18 Sep. 2021.

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