Definition

Relating to a type of cyst that contains hair, usually located in the lower back area near the buttocks, and can become inflamed.

Example

The doctor diagnosed her with a pilonidal cyst that required treatment.

Conversation

I heard you were dealing with a pilonidal issue recently.

Yeah, it was pretty uncomfortable for a while.

I can imagine — did you have to see a doctor for it?

Definitely, they said it’s common but can be quite annoying.

Synonyms & Antonyms

Root Explanation

Pilonidal → It is formed from "pilus" (meaning hair) and "nidus" (meaning nest). The word describes a condition involving a nest of hair, typically in the skin near the tailbone.

Memory Tip

Think of a 'nest' ('nidus') of 'hair' ('pilus') — that's why pilonidal refers to a condition involving hair in a nest-like formation.

Visually Confused Words