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DictionarysinewConnecting tissue
noun

sinew

SIN-yoo/ˈsɪnjuː/

A tough tendon connecting muscle to bone.

A strong sinew connects the calf muscle to the heel bone.

An isolated anatomical specimen of the calf and heel, with a small cutaway exposing the strong, pale Achilles tendon connecting the calf muscle to the heel bone.
Etymology
sinewOld Englishtendon

Old English sionu named a bodily tendon, a cord connecting muscle to bone. This connecting role provides the image behind calling a source of strength or support a “sinew.”

In context

Your Manhwa Recap146:40
lay the sinew and glue it on, to keep the bow from snapping when drawn
After Taking Over a Thug's Body, He Built a New Life With Hunting, Honey and Herbs 2

More examples

  • The surgeon repairs the torn sinew near his ankle.
  • The butcher trims the tough sinews from the meat.
  • The anatomy model shows muscles, bones, and sinews.

Forms

sinew · sinews

sinewy adjective — Having lean muscles and prominent sinews.

Similar words

tendon
The usual anatomical term for this muscle-to-bone connection.