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psoralen

[ sawr-uh-luhn, sohr- ]
/ ˈsɔr ə lən, ˈsoʊr- /
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noun Pharmacology.

a toxic substance, C11H6O3, found in certain plants, including parsnips, used to increase the response to ultraviolet light in the treatment of severe cases of acne and psoriasis.

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Also called furocoumarin.

Origin of psoralen

1930–35; <New Latin Psoral(ea) name of a genus of plants yielding the compound (<Greek psōraléa, neuter plural of psōraléos mangy, in reference to the glandular dots on the plant; see psoriasis) + -en, variant of -ene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Medical definitions for psoralen

psoralen
[ sôrə-lən ]

n.

Any of a group of chemical compounds found naturally in certain plants that are used in the treatment of psoriasis and vitiligo.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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