Extensor

noun

Definitions

Noun
  1. 1
    A muscle whose contraction extends or straightens a limb or body part.

    "Starting at the point of shoulder, use muscle squeezings, picking-ups, kneadings and gentle frictions, interspersed with effleurages, over the triceps muscle as well as the fleshy part of the flexor and extensor muscle groups."

  2. 2
    a skeletal muscle whose contraction extends or stretches a body part wordnet

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