rubber

noun (1)
rub·​ber | \ ˈrə-bər How to pronounce rubber (audio) \

Definition of rubber

 (Entry 1 of 2)

1a : one that rubs
b : an instrument or object (such as a rubber eraser) used in rubbing, polishing, scraping, or cleaning
c : something that prevents rubbing or chafing
2 [from its use in erasers]
a : an elastic substance that is obtained by coagulating the milky juice of any of various tropical plants (as of the genera Hevea and Ficus), is essentially a polymer of isoprene, and is prepared as sheets and then dried

called also caoutchouc, india rubber

b : any of various synthetic rubberlike substances
c : natural or synthetic rubber modified by chemical treatment to increase its useful properties (such as toughness and resistance to wear) and used especially in tires, electrical insulation, and waterproof materials
3 : something made of or resembling rubber: such as
a : a rubber overshoe
b(1) : a rubber tire
(2) : the set of tires on a vehicle
c : a rectangular slab of white rubber in the middle of a baseball infield on which a pitcher stands while pitching

rubber

noun (2)

Definition of rubber (Entry 2 of 2)

1 : a contest consisting of an odd number of games won by the side that takes a majority (such as two out of three)
2 : an odd game played to determine the winner of a tie

Other Words from rubber

Noun (1)

rubber adjective

First Known Use of rubber

Noun (1)

15th century, in the meaning defined at sense 1a

Noun (2)

1594, in the meaning defined at sense 1

History and Etymology for rubber

Noun (2)

origin unknown

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Time Traveler for rubber

Time Traveler

The first known use of rubber was in the 15th century

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Cite this Entry

“Rubber.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rubber. Accessed 16 May. 2021.

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More Definitions for rubber

rubber

noun
rub·​ber | \ ˈrə-bər How to pronounce rubber (audio) \

Kids Definition of rubber

1 : an elastic substance obtained from the milky juice of some tropical plants
2 : something (as an overshoe) made of rubber
3 : something used in rubbing
4 : a synthetic substance like rubber
5 : a flat white rectangle on which a baseball pitcher stands

rubber

noun
rub·​ber | \ ˈrəb-ər How to pronounce rubber (audio) \

Medical Definition of rubber

1 : an elastic substance that is obtained by coagulating the milky juice of any of various tropical plants (as of the genera Hevea and Ficus), is essentially a polymer of isoprene, and is prepared as sheets and then dried

called also caoutchouc, india rubber

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