Games

Word of the Day

Video

Blog: Words at Play

My Faves

Dictionary

tuber

noun tu·ber \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

: tuberosity

See tuber defined for English-language learners

See tuber defined for kids

Origin of TUBER

Latin, swelling, truffle; perhaps akin to Latin tumēre to swell — more at thumb

First Known Use: 1668

Rhymes with TUBER

Buber, cuber, goober

TUBERS Defined for Kids

tuber

noun tu·ber \ˈtü-bər, ˈtyü-\

Definition of TUBER for Kids

: a short thick fleshy usually underground stem (as of a potato plant) having buds that can produce new plants

Medical Dictionary

tuber

noun tu·ber \ˈt(y)ü-bər\

Medical Definition of TUBER

: an anatomical prominence : tuberosity

Learn More About TUBER

Spanish Central: Spanish translation of "tuber"

Nglish: Translation of "tuber" for Spanish speakers

Britannica.com: Encyclopedia article about "tuber"

Browse

Next Word in the Dictionary: TuberaceaePrevious Word in the Dictionary: tube plateAll Words Near: tuber

Seen & Heard

What made you want to look up tuber? Please tell us where you read or heard it (including the quote, if possible).

View Seen & Heard Highlights from Around the Site

Test Your Vocabulary!

10 Charming Words for Nasty People

Put-downs with flair

Learn More

When "Literally" isn't, well, literal

How to use a word that (literally) drives some people nuts.

Watch Now

Know what this is?

Test your vocab with our fun, fast game

Go Play

Fear of cats?

Ailurophobia, and 9 other unusual fears

Learn More