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单词	psoralen
释义	psoralen noun pso·​ra·​len ˈsȯr-ə-lən  : a substance C11H6O3 found in some plants that photosensitizes mammalian skin and is used in conjunction with ultraviolet light to treat psoriasis also : any of various derivatives of psoralen having similar properties Example Sentences Recent Examples on the Web There are several different types of phototherapy—including narrowband UVB, broadband UVB, targeted UVB [excimer laser or light], and UVA with psoralens (topical, oral, or bath)—and all of them involve exposing the skin to light. Jenna Birch, SELF, 28 Oct. 2019 Word History Etymology New Latin Psoralea, genus of plants from which it is isolated + English -en, alteration of -ene First Known Use 1933, in the meaning defined above Medical Definition psoralen noun pso·​ra·​len ˈsȯr-ə-lən  : a substance C11H6O3 found in some plants that photosensitizes mammalian skin and is used in conjunction with ultraviolet light to treat psoriasis also : any of various derivatives of psoralen having similar properties see puva
随便看	orange scab orange scale orange shellac orange sneezeweed orange spoon orange star orange swallowwort orange tip orange tortrix orange vermilion orange wine orange worm orange-blossom orchid orange-crowned warbler orange-flower water orange-peel bucket orange-rufous orange-sucker orange-tawny orange-tree butterfly orangeade orangeades orangeado orangebird orangecup lily

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