SynonymDefinitionAntonym.com - English Synonym Dictionary

Any projection that is thought to resemble a human arm

The graduated arc that is attached to an instrument for measuring angles

Either of the two halves of a bow from handle to tip

One of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper

(astronomy) the circumferential edge of the apparent disc of the sun or the moon or a planet

Any of the main branches arising from the trunk or a bough of a tree