WordWeb Online

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. A contest consisting of a series of successive matches between the same sides
   "he won three out of five games to take the rubber"
    
4. [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
    
5. [N. Amer, informal] Contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
   - condom, safety, safe, prophylactic, franger [Austral, informal], French letter [Brit, archaic, informal], protective, johnny [Brit, informal]
    
6. [N. Amer] A waterproof overshoe that protects shoes from water or snow
   - arctic [N. Amer], galosh, golosh, gumshoe [N. Amer]
    
7. [N. Amer] A tire consisting of a rubber ring around the rim of an automobile wheel
   - car tire [N. Amer], automobile tire [N. Amer], auto tire [N. Amer], rubber tire [N. Amer], car tyre [Brit], rubber tyre [Brit]
    
8. A series of an odd number of games or matches of which a majority must be won

1. Coat or impregnate with rubber
   "rubber fabric for rain coats";
   - rubberize, rubberise [Brit]

1. (banking) returned for lack of funds
   "a rubber check";
   - no-good

Derived forms: rubbers, rubbering, rubbered

See also: bad

Type of: birth control device, coat, competition, contest, contraceptive, contraceptive device, eraser, latex, overshoe, preventative, preventive, prophylactic device, surface, synthetic, synthetic substance, tire [N. Amer], tyre [Brit]

Part of: pencil

Encyclopedia: Rubber, Plastic and Allied Workers Union