Definition of pisiform in English:

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Pronunciation: /ˈpīsəˌfôrm/
Pronunciation: /ˈpīzəˌfôərm/
(also pisiform bone)


A small rounded carpal bone situated where the palm of the hand meets the outer edge of the wrist.
Example sentences
  • The motor branch to the hypothenar muscles separates from the main ulnar nerve just distal to the pisiform at the wrist.
  • The nerve recombined also beyond the tendon and was subject to compression, proximal to the pisiform bone.
  • The flexor carpi ulnaris inserts on the pisiform.


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

For editors and proofreaders

Syllabification: pi·si·form

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