n.
Pronunciation: ' so ̇ r- ə -l ə n
Function: noun
Etymology: New Latin Psoralea , genus of plants from which it is isolated + English - en , alteration of -ene
Date: 1933
: a substance C 11 H 6 O 3 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