microcapsulePronunciation: /ˈmʌɪkrə(ʊ)ˌkapsjʊl, ˈmʌɪkrə(ʊ)ˌkapsjuːl/Definition of microcapsule noun a minute capsule used to contain drugs, dyes, or other substances and render them temporarily inactive. microcapsule in other Oxford dictionaries Definition of microcapsule in the US English dictionary
