You searched for: “heptadactylia”
heptadactylia (s) (noun), heptadactylias (pl)
The presence of seven digits on the hands or the feet: "Floyd had an abnormal heptadactylia of fingers on his left hand while the other hand had a normal pentadactylia of fingers."
This entry is located in the following units: dactylo-, dactyl-, dactylio-, -dactyl, -dactyla, -dactylia, -dactylic, -dactylism, -dactyloid, -dactylous, -dactyly (page 7) hepta-, hept- (page 1)