pilonidal


pi·lo·ni·dal

adj \ˌpī-lə-ˈnī-dəl\

Definition of PILONIDAL

: of, relating to, or being a hair-containing cyst of the skin in the lower-back region near the upper crease of the buttocks

Origin of PILONIDAL

Latin pilus hair + nidus nest
First Known Use: 1880

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