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tuberoid

 - 5 dictionary results

tu⋅ber

1[too-ber, tyoo-]
–noun
1. 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.
2. Anatomy. a rounded swelling or protuberance; a tuberosity; a tubercle.

Origin:
1660–70; < L tūber bump, swelling. Cf. truffle


tu⋅ber⋅less, adjective
tu⋅ber⋅oid, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Word Origin & History

tuber 
"thick underground stem," 1668, from L. tuber "lump, bump," perhaps related to tumere "to swell" (see thigh).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: tu·ber
Pronunciation: 't(y)ü-b&r
Function: noun
: an anatomical prominence : TUBEROSITY
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

tuber tu·ber (t&oomacr;'bər, ty&oomacr;'-)
n. pl. tubers or tu·ber·a (-bər-ə)
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.
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Science Dictionary
tuber   (t'bər)  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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