a 1 c 3 t 1 i 1 n 1
5 letters · 7 points in Scrabble
Meaning
noun one of the proteins into which actomyosin can be split; can exist in either a globular or a fibrous form
originFrom Ancient Greek ἀκτίς (aktís, “ray”), based on the shape of the filament formed, + -in.
Etymology from Wiktionary, CC BY-SA 3.0