noun, plural san·i·tar·i·ums, san·i·tar·i·a [san-i-tair-ee-uh] /ˌsæn ɪˈtɛər i ə/.
- an institution for the preservation or recovery of health, especially for convalescence; health resort.
noun plural -riums or -ria (-rɪə)
- the US spelling of sanatorium
n.1829, literally “place dedicated to health,” from neuter of Modern Latin *sanitarius, from Latin sanitas “health,” from sanus “healthy; sane” (see sane). Cf. sanatarium. n.