What is "neoflavonoid"

n. (context organic chemistry English) Any compound, isomeric with the flavonoids, derived from ''4-phenyl-1,2-benzopyrone''

Neoflavonoids are a class of polyphenolic compounds. While flavonoids (in the narrow sense) have the 2-phenylchromen-4-one backbone, neoflavonoids have the 4-phenylchromen backbone with no hydroxyl group substitution at position 2.