noun \ˈtü-bər, ˈtyü-\

: a short, thick, round stem that is a part of certain plants (such as the potato), that grows underground, and that can produce a new plant

Full Definition of TUBER

a :  a short fleshy usually underground stem bearing minute scale leaves each of which bears a bud in its axil and is potentially able to produce a new plant — compare bulb, corm
b :  a fleshy root or rhizome resembling a tuber

Origin of TUBER

Latin, swelling, truffle; perhaps akin to Latin tumēre to swell — more at thumb
First Known Use: 1668

Rhymes with TUBER


noun \ˈt(y)ü-bər\   (Medical Dictionary)

Medical Definition of TUBER

: an anatomical prominence : tuberosity


noun    (Concise Encyclopedia)

Short, thickened, mostly underground stem that constitutes the resting stage of certain seed plants. It is often an organ of food storage, reproduction, or both. It bears minute scale leaves, each with a bud that has the potential for developing into a new plant. The common potato is a typical tuber; the much-reduced leaves and associated buds form its “eyes.” The term is also used imprecisely but widely for fleshy roots or rhizomes that resemble tubers (e.g., the “tuber” of the dahlia, actually a tuberous root).


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