The presence of fewer than the usual number of fingers or toes.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "oligodactyly" in a sentence
""a young but frail king who needed canes to walk because of the bone-necrotic and sometimes painful Koehler disease II, plus oligodactyly (hypophalangism) in the right foot and clubfoot on the left," the study said."