adj ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Having body hairs which have grown in a concentrated area on the skin and formed a cyst or abscess. not-comparable

Etymology

From Latin pilus (“hair”) and nidus (“nest”).

Related phrases

pilonidal abscesspilonidal cystpilonidal diseasepilonidal sinusnatal cleftsacrococcygeal fistula

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.