† invaletudiˈnarian,n.Obs.rare—1. In 8 invalit-. [f. as next + -an.] A sickly, infirm, or feeble person, a weakling: cf. valetudinarian. 1762London Mag. XXXI. 612 The present race of young invalitudinarians..this spurious, effeminate, mushroom breed.