Also found in: Thesaurus, Medical.
1. A tendon.
2. Vigorous strength; muscular power.
3. often sinews The source or mainstay of vitality and strength: "Good company and good discourse are the very sinews of virtue" (Izaak Walton).
tr.v. sin·ewed, sin·ew·ing, sin·ews
To strengthen with or as if with sinews.
[Middle English sinewe, from Old English sinewe, oblique form of seonu, sinu.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Anatomy) having sinews
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014