NOUN
- birth defect characterized by the presence of more than the normal number of fingers or toes
How To Use hyperdactyly In A Sentence
- As an animal that spends a great deal of time making small-scale local manoeuvres in its complex, three-dimensional watery home, Inia is especially telling in that it may actually be taking part in a trend toward hyperdactyly, as it bears an extra bone in its flipper that is to all intent and purposes a sixth digit. Archive 2006-09-01
