Medical Dictionary
syndactyly
noun syn·dac·ty·ly \-lē\
plural syn·dac·ty·lies
Medical Definition of SYNDACTYLY
: a union of two or more digits that is normal in many birds (as kingfishers) and in some lower mammals (as the kangaroos) and that occurs in humans often as a hereditary disorder marked by the joining or webbing of two or more fingers or toes
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