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1. An elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products
   - natural rubber, India rubber, gum elastic, caoutchouc
    
2. Any of various synthetic elastic materials whose properties resemble natural rubber
   - synthetic rubber
    
3. [Brit] An eraser made of rubber (or of a synthetic material with properties similar to rubber); commonly mounted at one end of a pencil
   - rubber eraser, pencil eraser
    
4. [N. Amer] Contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
   - condom, safety, safe, prophylactic, French letter [Brit], johnny [Brit]
    
5. [N. Amer] A waterproof overshoe that protects shoes from water or snow
   - arctic [N. Amer], galosh, golosh, gumshoe [N. Amer]

1. Coat or impregnate with rubber
   - rubberize, rubberise [Brit]

1. Returned for lack of funds
   "a rubber check"
   - no-good

Derived forms: rubbers, rubbered, rubbering

See also: bad, rubbery

Type of: birth control device, coat, contraceptive, contraceptive device, eraser, latex, overshoe, preventative, preventive, prophylactic device, surface, synthetic, synthetic substance

Part of: pencil

Encyclopedia: Rubber