noun, plural vom·i·to·ri·a [vom-i-tawr-ee-uh, –tohr-] /ˌvɒm ɪˈtɔr i ə, -ˈtoʊr-/.
1754, “passage or opening in an ancient amphitheater, leading to or from the seats,” from Latin (Macrobius, Sat., VI.iv); see vomit. Erroneous meaning “place where ancient Romans (allegedly) deliberately vomited during feasts” is attested from 1923.