pentadactyl
/ˌpentəˈdæktɪl/adjective
- Zoology (of a vertebrate limb) having five toes or fingers, or derived from such a form, as characteristic of all tetrapods【动】（脊椎动物四肢）五趾的; 五指的。
派生词
pentadactyly
/-ˈdæktɪlɪ/ noun词源
early 19th cent.: from PENTA- 'five'+Greek daktulos 'finger'.