tu·ber·ous / ˈt(y)oōbərəs/ (also tu·ber·ose / -bəˌrōs/ ) • adj. 1. Bot. of the nature of a tuber. See tuberous root. ∎  (of a plant) having tubers or a tuberous root.2. Med. characterized by or affected by rounded swellings: tuberous sclerosis.DERIVATIVES: tu·ber·os·i·ty / ˌt(y)oōbəˈräsitē/ n.

tuberous (tuberose) (tew-ber-ŭs) adj. knobbed; having nodules or rounded swellings. t. sclerosis (epiloia, Bourneville's disease) a hereditary disorder in which the brain, eyes, skin, and other organs are studded with small plaques or tumours. Symptoms include epilepsy, mental retardation, and behavioural disorders.