1. polydactyly

noun. birth defect characterized by the presence of more than the normal number of fingers or toes.


  • congenital disorder
  • congenital anomaly
  • hyperdactyly
  • birth defect
  • congenital abnormality


  • πολυδάκτυλος (Ancient Greek (to 1453))

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Sentences with polydactyly

1. Noun, singular or mass
If the extra toes are on the thumb side or inside of the paw, this is technically called the pre-axial form of polydactyly.

2. Adjective
The polydactyly trait -- having extra fingers or toes -- is one example of a rare inherited dominant gene trait.