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flex·or / ˈflekˌsər; -ˌsôr/ (also flexor muscle) • n. Anat. a muscle whose contraction bends a limb or other part of the body. Often contrasted with extensor. ∎  any of a number of specific muscles in the arm, hand, leg, or foot.

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flexor A muscle that causes a limb to bend by bringing the two parts of the limb together. An example is the biceps. Flexors work antagonistically with extensors. See voluntary muscle.

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flexor (fleks-er) n. any muscle that causes bending of a limb or other part.

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flexor

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