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rubber. 1. [ ruhb -er ] Phonetic (Standard)IPA. noun. Also called India rubber,. 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.
Rubber is a type of material called a polymer. It can be produced from natural sources (e.g. natural rubber) or can be synthesised on an industrial scale. Many things are made from rubber, like gloves, tires, plugs, and masks. Some things can be made only from rubber.
Rubber is an elastic, hydrocarbon polymer that occurs as a milky, colloidal suspension (known as latex) in the sap of several varieties of plants. Rubber can also be produced synthetically. Unfortunately, the history of rubber has a dark side as well.
