Definition of Arachnodactyly

Arachnodactyly: Long spider-like fingers and toes, a frequent finding in Marfan syndrome, a heritable disorder of connective tissue.

"Arachnodactyly" is derived from the Greek "arachne" (spider) and "daktylos" (finger). The Greek word was derived from the name "Arachne," a maiden in Greek mythology whom the goddess Athena turned into a spider after the girl, a skilled weaver, challenged Athena to a weaving contest.


Last Editorial Review: 8/28/2013

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