noun

• (pathology) A type of deformed growth occurring on the skin caused by the human papillomavirus (HPV).
• Any similar growth occurring in plants or animals, such as the parotoid glands in the back of toads.
• (informal, figurative) Anything unsightly or undesirable; a blemish.
• (programming, slang, derogatory) Any of the prefixes used in Hungarian notation.