acetone: the simplest ketone; a highly inflammable liquid widely used as an organic solvent and as material for making plastics
ketone: any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals
cargo cult: (Melanesia) the followers of one of several millenarian cults that believe salvation will come in the form of wealth (`cargo') brought by westerners; some ascribe divine attributes to westerners on first contact (especially to missionaries)