noun
flavonol
A class of flavonoids found in many plants; used in chemistry and nutrition contexts.
フラボノールは、タマネギやケールに多く含まれている。
Flavonols are abundant in onions and kale.
Flavonoid is the broader class; flavonol is a specific subgroup of flavonoids.
Loanword from English 'flavonol', itself derived from 'flavone' + '-ol'.