a protein in muscles
Origin of actin
from Classical Latin actus (see act) + -inactin
actin-actin-
actino-: used before a vowel: actinal
Webster's New World College Dictionary, Fifth Edition Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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actin
noun
A protein that forms the microfilaments of the eukaryotic cytoskeleton and plays an important role in cell movement, shape, and internal organization. In muscle cells, it functions with myosin to produce contraction.
Origin of actin
Latin āctus motion ; see act. -inactin-
prefix
Variant of actino-
THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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"Actin." YourDictionary. LoveToKnow. www.yourdictionary.com/ACTIN.
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A protein found in all eukaryotic cells, forming filaments that make up a main component of the cell's supporting matrix or cytoskeleton. Actin and the protein myosin together make up the contractile units (called sarcomeres) of skeletal muscle fibers.
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"Actin." YourDictionary. LoveToKnow. www.yourdictionary.com/ACTIN.
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Actin. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/ACTIN
Noun
(countable and uncountable, plural actins)
Origin
From Ancient Greek ἀκτίς (aktis, “ray”), based on the shape of the filament formed, and the English chemical suffix -in.
English Wiktionary. Available under CC-BY-SA license.
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"Actin." YourDictionary. LoveToKnow. www.yourdictionary.com/ACTIN.
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Actin. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/ACTIN
actin - Medical Definition
n.
A protein that forms the microfilaments of the eukaryotic cytoskeleton and plays an important role in cell movement, shape, and internal organization. In muscle cells, it functions with myosin to produce contraction.
The American Heritage Dictionary of Medicine © 2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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"Actin." YourDictionary. LoveToKnow. www.yourdictionary.com/ACTIN.
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Actin. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/ACTIN
