Medical Dictionary


noun arach·no·dac·ty·ly \ə-ˌrak-nō-ˈdak-tə-lē\
plural arach·no·dac·ty·lies

Medical Definition of ARACHNODACTYLY

:  a hereditary condition characterized especially by excessive length of the fingers and toes—see congenital contractural arachnodactyly
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears