circumduction

circumduction /cir·cum·duc·tion/ (-duk´shun) circular movement of a limb or of the eye.

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cir·cum·duc·tion (sûrkm-dkshn)

n.

Movement of a part in a circular direction.

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circumduction

[sur′kəmduk′shən]

Etymology: L, circum + ducere, to lead

1 one of the four basic movements allowed by the various joints of the skeleton. It is a combination of abduction, adduction, extension, and flexion. An example is the motion of a bone whose head articulates with a cavity, such as the femur with the acetabulum. The motion of the bone circumscribes a cone, the apex of which is in the cavity and the base of which is described by the distal end of the bone.

2 the circular movement of a limb or of the eye. Compare angular movement, gliding, rotation.

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circumduction (sirˈ·km·dukˑ·shn),

n cone-shaped movement of a limb that includes flexion, abduction, extension, and adduction.

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circumduction

circular movement of a limb or of the eye.