tuberous

adjective

tu·​ber·​ous ˈtü-b(ə-)rəs 

ˈtyü-

1

: consisting of, bearing, or resembling a tuber

2

: of, relating to, or being a plant tuber or tuberous root of a plant

Examples of tuberous in a Sentence

Recent Examples on the Web

Common types, such as tuberous and wax begonias, are said to have a cucumber-like crunch and a slightly citrusy, tangy taste. —Derek Carwood, Better Homes & Gardens, 12 Mar. 2026

Lobelia with its beautiful blue, Scaevola, tuberous begonias and many other gorgeous flowering plants appear this time of year. —Becky Wern, Florida Times-Union, 7 Mar. 2026

The plant in question is neither an artichoke nor of Jerusalem origin, but rather a sunflower (Helianthus tuberous) native to the U.S. from the Great Lakes down to the South. —Joshua Siskin, Oc Register, 1 Jan. 2026

Summer Bulbs Summer flowering bulbs, such as Asiatic lily, caladium, dahlia, elephant ears, and tuberous begonias, should be removed from the garden in zones 7 or below, where the ground is frozen solid for much of the winter. —Mary Marlowe Leverette, Southern Living, 27 Dec. 2025

Word History

First Known Use

1650, in the meaning defined at sense 1

Phrases Containing tuberous

• tuberous root

Kids Definition

tuberous

adjective

tu·​ber·​ous ˈt(y)ü-b(ə-)rəs 

1

: consisting of, resembling, or producing a tuber

2

: of, relating to, or being a plant tuber

Medical Definition

tuberous

adjective

tu·​ber·​ous ˈt(y)ü-b(ə-)rəs 

: characterized by or being knobby or nodular lesions

tuberous xanthomas on the knees