hyperdactylia

[ hahy-per-dak-til-ee-uh ]
/ ˌhaɪ pər dækˈtɪl i ə /

noun

the presence of extra fingers or toes.
Also hy·per·dac·tyl·ism [hahy-per-dak-tl-iz-uh m] /ˌhaɪ pərˈdæk tlˌɪz əm/, hy·per·dac·ty·ly [hahy-per-dak-tl-ee] /ˌhaɪ pərˈdæk tl i/.

Origin of hyperdactylia

1900–05; hyper- + New Latin -dactylia -dactyly

Medical definitions for hyperdactyly

hyperdactyly
[ hī′pər-dăktə-lē ]

n.

polydactyly