Main Entry: arach·no·dac·ty·ly Pronunciation: &-"rak-nO-'dak-t&-lE Function: noun Inflected Form: plural-lies : a hereditary condition characterized especially by excessive length of the fingers and toes —see CONGENITAL CONTRACTURAL ARACHNODACTYLY
arachnodactyly a·rach·no·dac·ty·ly (ə-rāk'nō-dāk'tə-lē) n. A condition in which the hands and fingers, and often the feet and toes, are abnormally long and slender, characteristic of Marfan syndrome.
