Submitted by György Chityil ... on Sat, 01/20/2018 - 01:15 Hierarchy: NounDescription: {{chemistry}} A yellowish-white natural product of the coumarin family, occurring in such plants as carrot and coriander.Ngram: umbelliferoneNgram Text: umbelliferoneSource: WiktionaryIssue: 0Wiktionary tag: chemistryNgram Count: 1