Pilonidal sinus

pilonidal sinus n.
A fistula or pit in the sacral region, communicating with the exterior and containing hair that may act as a foreign body and produce chronic inflammation. Also called pilonidal fistula.

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  • Pilose

    [pahy-lohs] /ˈpaɪ loʊs/ adjective 1. covered with hair, especially soft hair; furry. /ˈpaɪləʊz/ adjective 1. (biology) covered with fine soft hairs: pilose leaves pilose pi·lose (pī’lōs) or pi·lous (-ləs) adj. Covered with fine, soft hair.

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    [pee-laws] /ˈpi lɔs/ noun 1. Greek name of . /ˈpilɔs/ noun 1. transliteration of the Modern Greek name for Pylos

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    [pahy-luh t] /ˈpaɪ lət/ noun 1. a person duly qualified to steer ships into or out of a harbor or through certain difficult waters. 2. a person who steers a ship. 3. Aeronautics. a person duly qualified to operate an airplane, balloon, or other aircraft. 4. a guide or leader: the pilot of the expedition. […]

  • Pilosebaceous

    pilosebaceous pi·lo·se·ba·ceous (pī’lō-sĭ-bā’shəs) adj. Relating to the hair follicles and sebaceous glands.

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