¹rubber

noun rub·ber \ˈrə-bər\

Definition of RUBBER

a : one that rubs

b : an instrument or object (as a rubber eraser) used in rubbing, polishing, scraping, or cleaning

c : something that prevents rubbing or chafing

[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 (as toughness and resistance to wear) and used especially in tires, electrical insulation, and waterproof materials

: something made of or resembling rubber: 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

d : condom 1

— rubber adjective

First Known Use of RUBBER

1536

Rhymes with RUBBER

blubber, clubber, drubber, dubber, grubber, lubber, scrubber, slubber, snubber, tubber

²rubber

noun

Definition of RUBBER

: a contest consisting of an odd number of games won by the side that takes a majority (as two out of three)

: an odd game played to determine the winner of a tie

Origin of RUBBER

origin unknown

First Known Use: 1599

RUBBER Defined for Kids

rubber

noun rub·ber \ˈrə-bər\

Definition of RUBBER for Kids

: an elastic substance obtained from the milky juice of some tropical plants

: something (as an overshoe) made of rubber

: something used in rubbing

: a synthetic substance like rubber

: a flat white rectangle on which a baseball pitcher stands

Medical Dictionary

rubber

noun rub·ber \ˈrəb-ər\

Medical Definition of RUBBER

: 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

: condom 1