1. The forearm; the part of the arm between the elbow and the wrist.
Usage: anatomical term; Latin origin; chiefly used in medical and anatomical contexts
2. The elbow joint or the region of the elbow.
Usage: anatomical term; archaic or specialized medical usage

Examples

• The cubitus extends from the elbow to the wrist.
• Fractures of the cubitus are common in falls.
• The anatomy textbook labeled the cubitus in the diagram of the upper limb.
• Pain in the cubitus may indicate nerve compression.
• The cubitus contains two bones: the radius and ulna.