lunate

 
Pronunciation: /ˈluːneɪt/

adjective

  • crescent-shaped.

noun

  • 1 Archaeology a crescent-shaped prehistoric stone implement.
  • 2 (also lunate bone) Anatomy a crescent-shaped carpal bone situated in the centre of the wrist and articulating with the radius.

Origin:

late 18th century: from Latin lunatus, from luna 'moon'