pisiform

The ulnare, intermedium and pisiform are comparatively large flattened bones, the others are small and cubical.
The Vertebrate Skeleton|Sidney H. Reynolds
The bones of the proximal row are the radiale, the ulnare, and the pisiform.
The Vertebrate Skeleton|Sidney H. Reynolds
The pisiform also is well developed, but there is no radial sesamoid.
The Vertebrate Skeleton|Sidney H. Reynolds
The pisiform is large and several other sesamoid bones occur.
The Vertebrate Skeleton|Sidney H. Reynolds

The pisiform bone, situated at the external part of the first row of bone, is prominent posteriorly.
Artistic Anatomy of Animals|douard Cuyer

British Dictionary definitions for pisiform

pisiform

/ (ˈpɪsɪˌfɔːm) /

adjective

zoology botany resembling a pea

noun

a small pealike bone on the ulnar side of the carpus

Word Origin for pisiform

C18: via New Latin from Latin pīsum pea + forma shape

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for pisiform

pisiform

[ pī′sə-fôrm′ ]

adj.

Resembling a pea in size or shape.

Pisiform bone.