Peroneal
- (anatomy) Pertaining to the fibula or to the part of the leg containing it, the outside (lateral aspect) of the lower leg (that is, what anatomical terminology calls the leg, from knee to foot). [from 19th c.]
Usage notes
Do not confuse peroneal ("of the outside of the lower leg") with perineal ("of the skin between the genitals and anus"); the words sound almost alike or even entirely alike, depending on the variable quality of a single reduced vowel.