(anatomy) the point of connection between two bones or elements of a skeleton (especially if it allows motion)

an envelope surrounding a synovial joint.

the joint between the head of the lower jawbone and the temporal bone

a freely moving joint in which the articulations allow only gliding motions

a freely moving joint in which the bones are so articulated as to allow extensive movement in one plane

a joint of a finger when the fist is closed

a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone