WordNet (r) 3.0 (2006):
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]