pisiform

 
Pronunciation: /ˈpʌɪsɪfɔːm, ˈpɪzɪ-/
(also pisiform bone)

noun

  • a small rounded carpal bone situated where the palm of the hand meets the outer edge of the wrist and articulating with the triquetral.

Origin:

mid 18th century: from modern Latin pisiformis 'pea-shaped', from pisum 'pea' + forma 'shape'