actinost

noun

ac·​ti·​nost
ˈak-tə-ˌnäst
plural -s
: one of certain small bones directly supporting the rays of paired fins of teleost and some ganoid fishes

called also carpal, pterygiophore

compare hypercoracoid

Word History

Etymology

actin- + -ost

First Known Use

1872, in the meaning defined above

Time Traveler
The first known use of actinost was in 1872

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Dictionary Entries Near actinost

Actinosphaerium

actinost

actinostele

See More Nearby Entries 

Cite this Entry

“Actinost.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/actinost. Accessed 30 Nov. 2024.

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