| Triceps (n.) A muscle having three heads; specif., the great extensor of the forearm, arising by three heads and inserted into the olecranon at the elbow. Thesaurus Entries adductor, arm, buccinator, elbow, forearm, gemellus, gluteus maximus, infraspinatus, intercostal, latissimus dorsi, levator, masseter, mentalis, mylohyoid, nasalis, oblique, occipitalis, omohyoid, pectineus, pectoralis, peroneus, sphincter, tensor, trapezius, triceps, upper arm, wrist |