vapourific adj 1: (used of substances) capable of being volatilized [syn: {evaporable}, {vaporific}, {vapourific}, {vaporizable}, {vapourisable}, {volatilizable}, {volatilisable}] 2: resembling or characteristic of vapor; "vaporous clouds" [syn: {vaporific}, {vapourific}, {vaporish}, {vapourish}, {vaporous}, {vapourous}]