Dictionary

actin

noun ac·tin \ˈak-tən\

Definition of ACTIN

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

International Scientific Vocabulary, from Latin actus
First Known Use: 1942
Medical Dictionary

actin

noun ac·tin \ˈak-tən\

Medical Definition of ACTIN

:  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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