Assertion: parsnip's chemical | /r/Synonym | psoralen
Facets:
Source sentences:
text: The oils in the stalk contain a chemical called psoralen which reacts with the skin in the presence of sunlight, causing a chemical burn.
text: Plants have chemicals called psoralens (more precisely, furocoumarins) that cause phyto-photodermatitis: an interaction between plants (phyto) and light (photo) that induce skin (derm) inflammation (itis).
text: The sap in wild parsnip contains chemicals called psoralens.