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actin

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noun ac·tin \ˈak-tən\

Definition of actin

  1. :  a cellular protein found especially in microfilaments (as those comprising myofibrils) and active in muscular contraction, cellular movement, and maintenance of cell shape



Origin and Etymology of actin

International Scientific Vocabulary, from Latin actus


First Known Use: 1942


actin-

combining form ac·tin

Definition of actin-

  1. 1 :  having a radiate form <actinolite>

  2. 2 :  actinic radiation (as X rays) <actinometer>



Variants of actin-

or

actini-

or

actino-

Origin and Etymology of actin-

New Latin, ray, from Greek aktin-, aktino-, from aktin-, aktis; perhaps akin to Old English ūhte morning twilight, Latin noct-, nox night — more at night


Medical Dictionary

actin

play
noun ac·tin \ˈak-tən\

Medical Definition of actin

  1. :  a protein found especially in microfilaments (as those comprising myofibrils) and active in muscular contraction, cellular movement, and maintenance of cell shape—see f-actin, g-actin




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