from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The commonest protein in muscle cells, responsible for the elastic and contractile properties of muscle. It combines with actin to form actomyosin.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A large family of motor proteins found in eukaryotic tissues, allowing mobility in muscles.

from the GNU version of the Collaborative International Dictionary of English

  • n. A protein present in muscle, serving as the principle contractile protein in muscle contraction.

from The Century Dictionary and Cyclopedia

  • n. A globulin, the chief ingredient which separates from muscle-plasma on coagulation.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the commonest protein in muscle; a globulin that combines with actin to form actomyosin


Greek muos, genitive of mūs, muscle; see myo- + -in.
(American Heritage® Dictionary of the English Language, Fourth Edition)
myo- ("relating to muscle"), from Ancient Greek μυός (muos), genitive of μῦς (mus, "muscle") + -in. (Wiktionary)



Log in or sign up to get involved in the conversation. It's quick and easy.