furuncle

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boil

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Late Middle English, borrowed from Latin fūrunculus (“a petty thief, pilferer; a pointed burning sore, boil”), diminutive of fūr (“a thief”).

• (Received Pronunciation) IPA^(key): /ˈfjʊə.ɹʌŋ.kəl/, /ˈfjʊə.ɹʌŋ.kl̩/
• (General American) IPA^(key): /ˈfjʊɹˌʌŋ.kəl/

furuncle (plural furuncles)

1. (pathology) A boil or infected, inflamed, pus-filled sore.

• “furuncle”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “furuncle”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.