Rubber Definition

rŭbər
noun
A person or thing that rubs, as in polishing, scraping, massaging, etc.
Webster's New World
An elastic substance produced by coagulating and drying the milky sap (latex) of various tropical plants, esp. a tree (Hevea brasiliensis) of the spurge family: now most often produced synthetically or by chemically altering latex to obtain desired characteristics for use in making automobile tires, electrical insulation, molded objects and parts, etc.: in pure form rubber is a white, unsaturated hydrocarbon, having the formula (C5H8)n.
Webster's New World
Any of numerous synthetic elastic materials of varying chemical composition with properties similar to those of natural rubber; an elastomer.
American Heritage
A low overshoe made of rubber.
American Heritage
An oblong rubber slab set in the pitcher's mound: the pitcher's foot must touch the rubber as each pitch is thrown.
Webster's New World
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adjective
Made of rubber.
Webster's New World
verb
Webster's New World
Synonyms:
rubberiserubberize

Other Word Forms of Rubber

Noun

Singular:
rubber
Plural:
rubbers

Idioms, Phrasal Verbs Related to Rubber

  • where the rubber meets the road

Origin of Rubber

  • In the sense of an eraser, rub +"Ž -er; in the sense of pliable material, derived from the previous sense of eraser; the other senses derived from the pliable material sense.

    From Wiktionary

  • Origin unknown

    From American Heritage Dictionary of the English Language, 5th Edition

  • From rub

    From American Heritage Dictionary of the English Language, 5th Edition

  • Origin unknown.

    From Wiktionary

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rubber
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