natural-rubber Unabridged


1 [ruhb-er]
Also called India rubber, natural rubber, gum elastic, caoutchouc. a highly elastic solid substance, light cream or dark amber in color, polymerized by the drying and coagulation of the latex or milky juice of rubber trees and plants, especially Hevea and Ficus species.
a material made by chemically treating and toughening this substance, valued for its elasticity, nonconduction of electricity, shock absorption, and resistance to moisture, used in the manufacture of erasers, electrical insulation, elastic bands, crepe soles, toys, water hoses, tires, and many other products.
any of various similar substances and materials made synthetically. Compare synthetic rubber.
an eraser of this material, for erasing pencil marks, ink marks, etc.
Informal. a rubber tire or a set of rubber tires.
a low overshoe of this material.
an instrument or tool used for rubbing, polishing, scraping, etc.
a person who rubs something, as to smooth or polish it.
cutter ( def 8 ).
British. a dishcloth.
a person who gives massages; masseur or masseuse.
Horse Racing. swipe ( def 7 ).
Baseball. an oblong piece of white rubber or other material embedded in the mound at the point from which the pitcher delivers the ball.
a coarse file.
Slang. a condom.
verb (used without object)
Informal. to rubberneck.
made of, containing, or coated with rubber: a rubber bath mat.
pertaining to or producing rubber: a rubber plantation.

1530–40; rub + -er1

rubberless, adjective
rubberlike, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To natural-rubber
World English Dictionary
rubber1 (ˈrʌbə)
1.  India rubber, gum elastic, Also called: caoutchouc a cream to dark brown elastic material obtained by coagulating and drying the latex from certain plants, esp the tree Hevea brasiliensis
2.  any of a large variety of elastomers produced by improving the properties of natural rubber or by synthetic means
3.  chiefly (Brit) a piece of rubber or felt used for erasing something written, typed, etc; eraser
4.  a coarse file
5.  a cloth, pad, etc, used for polishing or buffing
6.  a person who rubs something in order to smooth, polish, or massage
7.  chiefly (US), (Canadian) (often plural) a rubberized waterproof article, such as a mackintosh or overshoe
8.  slang a male contraceptive; condom
9.  (modifier) made of or producing rubber: a rubber ball; a rubber factory
[C17: from rub + -er1; the tree was so named because its product was used for rubbing out writing]

rubber2 (ˈrʌbə)
1.  bridge, whist
 a.  a match of three games
 b.  the deal that wins such a match
2.  a series of matches or games in any of various sports
[C16: origin unknown]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

"thing that rubs," 1536, from rub (v.). The meaning "elastic substance from tropical plants" (short for India rubber) first recorded 1788, introduced to Europe 1744 by Charles Marie de la Condamine, so called because it was originally used as an eraser.
"Very useful for erasing the strokes of black lead pencils, and is popularly called rubber, and lead-eater." [entry for Caoutchouc in, Howard, "New Royal Encyclopedia," 1788]
Meaning "overshoes made of rubber" is 1842, Amer.Eng.; slang sense of "condom" is from 1930s. Sense of "deciding match" in a game or contest is 1599, of unknown origin, and perhaps an entirely separate word. Rubberneck (v.) is attested from 1896. Rubber stamp is from 1881; fig. sense of "institution whose power is formal but not real" is from 1919; the v. in this sense is from 1934. Rubber cement is attested from 1895. Rubber check is from 1927.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Science Dictionary
rubber   (rŭb'ər)  Pronunciation Key 
  1. An elastic material prepared from the milky sap of certain tropical plants, especially the tree Hevea brasiliensis. Rubber is a polymer that is used, after processing, in a great variety of products, including electric insulation and tires. In its pure form, it is white and consists of repeating units of C5H8.

  2. Any of various synthetic materials having properties that are similar to those of this substance.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature