The definition of a rubber is someone who massages something, or slang for a condom.(noun)
Rubber is a material made from the sap of a tree to create tires, molds and other materials.(noun)
An example of rubber is the original material used for car tires.
See rubber in Webster's New World College Dictionary
Origin: from orig. use as an eraseran 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 (CH)
Origin: < ?
See rubber in American Heritage Dictionary 4
Origin: From rub.
Origin: Origin unknown.
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