chloral /ˈklɔːɹæl/ noun1 •A colourless narcotic liquid, trichloroacetaldehyde, CCl₃CHO, obtained at first by the action of chlorine on alcohol and that, when treated with water, produces chloral hydrate.‘They say there is a skeleton in every cupboard,’ Rossetti said quietly, ‘and that's mine; it's chloral.’ Caine was shocked but forbore to comment. — 1997 formschlorals