thickener
Word family (noun) thick thickness thickener thickening thicko (adjective) thick (verb) thicken (adverb) thickly
From Longman Dictionary of Contemporary Englishthickenerthick‧en‧er /ˈθɪkənə, ˈθɪknə $ -ər/ (also thickening /ˈθɪkənɪŋ, ˈθɪknɪŋ/) noun [countable, uncountable] THICK LIQUIDa substance used to thicken a liquid