pityriasis rubra pilaris
noun
pityriasis ru·bra pi·lar·is
-ˈrü-brə-pi-ˈlar-əs 
: a chronic dermatitis characterized by the formation of papular horny plugs in the hair follicles and pinkish macules which tend to spread and become scaly plaques
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“Pityriasis rubra pilaris.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/pityriasis%20rubra%20pilaris. Accessed 4 Dec. 2024.
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