polydactyly
/ˌpɑlɪˈdæktəli/
noun
- A condition in which a person or animal is born with more than the usual number of fingers or toes.
- Polydactyly is often a harmless genetic trait that does not affect a person's health.
- The kitten was born with polydactyly, giving it seven toes on each front paw.
- The doctor explained that polydactyly can be surgically corrected if needed.