An extremity or appendage used for locomotion or prehension, such as an arm or a leg.

The circular outer edge of a celestial body; the half with the greater altitude is called the upper limb, and the half with the lesser altitude, the lower limb.

A large primary tree branch.

1. The graduated margin of an arc or circle in an instrument for measuring angles, as that part of a marine sextant carrying the altitude scale.

2. The graduated staff of a leveling rod.

One of the two sections of an anticline or syncline on either side of the axis. Also known as flank.