a protein that participates in many kinds of cell movement, including muscle contraction, during which it interacts with filaments of a second protein, myosin
Word origin
C20: from act + -in
actin in American English
(ˈæktɪn)
noun
a protein in muscles
see also actomyosin
Word origin
< L actus (see act1) + -in1
actin- in American English
(ˈæktɪn)
actino-
used before a vowel
actinal
Examples of 'actin' in a sentence
actin
`Don'chu think tha'chu actin ' like Little Miss Purity alla time is gonna hurt me?