Meaning of hypophalangism

hy•po•pha•lan•gism

Pronunciation: (hī"pō-fu-lan'jiz-um), [key]
— n.
  1. the condition of having fewer than the normal number of phalanges per finger or toe.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.