actomyosin

noun

ac·​to·​my·​o·​sin ˌak-tə-ˈmī-ə-sən How to pronounce actomyosin (audio)
: a contractile complex of actin and myosin that together with ATP is active during muscular contraction

Word History

Etymology

act(in) + -o- + myosin

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of actomyosin was in 1942

Dictionary Entries Near actomyosin

Cite this Entry

“Actomyosin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/actomyosin. Accessed 25 May. 2024.

Medical Definition

actomyosin

noun
ac·​to·​my·​o·​sin ˌak-tə-ˈmī-ə-sən How to pronounce actomyosin (audio)
: a viscous contractile complex of actin and myosin concerned together with ATP in muscular contraction

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