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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for hyperdactyly

hyperdactyly
[ hī′pər-dăktə-lē ]

n.

polydactyly
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.