Dictionary.com

tuber

1
[ too-ber, tyoo- ]
/ ˈtu bər, ˈtyu- /
Save This Word!

noun
Botany. a fleshy, usually oblong or rounded thickening or outgrowth, as the potato, of a subterranean stem or shoot, bearing minute scalelike leaves with buds or eyes in their axils from which new plants may arise.
Anatomy. a rounded swelling or protuberance; a tuberosity; a tubercle.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of tuber

1
1660–70; <Latin tūber bump, swelling. Cf. truffle

OTHER WORDS FROM tuber

tu·ber·less, adjectivetu·ber·oid, adjective

Other definitions for tuber (2 of 2)

tuber2
[ too-ber, tyoo- ]
/ ˈtu bər, ˈtyu- /

noun
a person or thing that forms, installs, or operates with tubes.
Also called inner-tuber. a person who participates in the sport of tubing.

Origin of tuber

2
First recorded in 1920–25; tube + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use tuber in a sentence

British Dictionary definitions for tuber

tuber
/ (ˈtjuːbə) /

noun
a fleshy underground stem (as in the potato) or root (as in the dahlia) that is an organ of vegetative reproduction and food storage
anatomy a raised area; swelling

Word Origin for tuber

C17: from Latin tūber hump
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for tuber

tuber
[ tōōbər ]

n. pl. tubers
A localized rounded projection or swelling; a knob, tuberosity, or eminence.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for tuber

tuber
[ tōōbər ]

The thickened part of an underground stem of a plant, such as the potato, bearing buds from which new plant shoots arise. Compare bulb corm rhizome runner.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK