from The Century Dictionary.
- noun The posture of a limb or joint half-way between extension and complete flexion.
Sorry, no etymologies found.
In full flexion the movement of the radial head is hampered by the compression of the surrounding soft parts, so that the freest rotatory movement of the radius on the humerus (pronation and supination) takes place in semiflexion, in which position the two articular surfaces are in most intimate contact.
The position of the lateral epicondyle is best seen during semiflexion of the forearm, and is indicated by a depression; from it the strongly marked lateral supracondylar ridge runs upward.
If the external condyle be separated the joint is immovable, the hand remains supine, and there is constant semiflexion of the forearm.
When a lower limb has been operated upon, bring the bones together, and extend it; but when an upper, put it in a state of semiflexion, and leave the bones a little apart so as to secure, if possible an artificial joint.