ec·tro·dactylism noun alsoec·tro·dactyliaorec·tro·dactyly\ˌektrō+\ (pluralectrodactylismsalsoectrodactyliasorectrodactylies) Etymology:ectrodactylism from ectro- + -dactylism; ectrodactylia & ectrodactyly from New Latin ectrodactylia, from ectro- + -dactylia : congenital complete or partial absence of one or more digits • ec·tro·dac·ty·lous\| ̷ ̷ ̷ ̷|daktələs\adjective