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Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: An angular furanocoumarin chemical compound found in angelica root, 2-(9-{[(2Z)-2-methylbut-2-enoyl]oxy}-2-oxo-2H,8H,9H-furo[2,3-H]chromen-8-yl)propan-2-yl (2Z)-2-methylbut-2-enoate Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.