tendon

Etymology

Borrowed from French tendon or Medieval Latin tendō, from Ancient Greek τένων (ténōn, “sinew, tendon”), modified by association with the verb tendō (“to stretch”).

noun

1. (anatomy) A tough band of flexible but inelastic fibrous collagen tissue that connects a muscle with its bony attachment and transmits the force which the muscle exerts.
   I hear a wrenching sound of tendons stretching and testing their anchors on the bone. 2016, Ian McEwan, Nutshell, Vintage, page 78
2. (biology) The hamstring of a quadruped.
3. (construction) A wire or bar used to strengthen prestressed concrete.