American English

Definition of sinew noun from the Oxford Advanced American Dictionary



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  1. 1[countable, uncountable] a strong band of tissue in the body that joins a muscle to a bone
  2. 2[usually plural] (literary) a source of strength or power the sinews of economic life
  3. Idioms
    strain every nerve/sinew (to do something) (formal)
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    to try as hard as you can to do something He strained every nerve to snatch victory from defeat.
See the Oxford Advanced Learner's Dictionary entry: sinew