Origin: Greek prefix poly-
Polydactyly has 2 different meanings across 1 category:
birth defect characterized by the presence of more than the normal number of fingers or toes
A condition in which a person or animal has more than five fingers or toes on one, or on each, hand or foot.
The word comes from Ancient Greek, combining "many" with "digits." It originally described the condition of having extra fingers or toes.