pilonidal

adjective
pi·​lo·​ni·​dal | \ ˌpī-lə-ˈnī-dᵊl How to pronounce pilonidal (audio) \

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

Examples of pilonidal in a Sentence

Recent Examples on the Web Isabell suffers from pilonidal disease, a chronic skin infection that causes cysts to form in the crease between the buttocks. USA Today, 25 Feb. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pilonidal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of pilonidal

1880, in the meaning defined above

History and Etymology for pilonidal

Latin pilus hair + nidus nest

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Time Traveler for pilonidal

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The first known use of pilonidal was in 1880

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Dictionary Entries Near pilonidal

piloncillo

pilonidal

pilori

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Cite this Entry

“Pilonidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pilonidal. Accessed 27 Jan. 2022.

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More Definitions for pilonidal

pilonidal

adjective
pi·​lo·​ni·​dal | \ ˌpī-lə-ˈnīd-ᵊl How to pronounce pilonidal (audio) \

Medical Definition of pilonidal

1 : containing hair nested in a cyst used of congenitally anomalous cysts in the sacrococcygeal area that often become infected and discharge through a channel near the anus
2 : of, relating to, involving, or for use on pilonidal cysts, tracts, or sinuses

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