1. caoutchouc, elastic material derived from of some tropical plants; synthetic material resembling caoutchouc; eraser; instrument for rubbing or scraping; series of card games; decisive game in a series of card games; condom (Slang). coat with rubber, cover with rubber. made from rubber, composed of elastic material, made from caoutchouc. rubber\rub"ber\ , n.
2. one who, or that which, rubs. specifically: (a) an instrument or thing used in rubbing, polishing, or cleaning. (b) a coarse file, or the rough part of a file. (c) a whetstone; a rubstone. (d) an eraser, usually made of caoutchouc. (e) the cushion of an electrical machine. (f) one who performs massage, especially in a turkish bath. (g) something that chafes or annoys; hence, something that grates on the feelings; a sarcasm; a rub.
3. in some games, as whist, the odd game, as the third or the fifth, when there is a tie between the players; as, to play the rubber; also, a contest determined by the winning of two out of three games; as, to play a rubber of whist. "a rubber of cribbage.".
4. india rubber; caoutchouc.
5. an overshoe made of india rubber. [colloq.].
6. One who, or that which, rubs.
7. An instrument or thing used in rubbing, polishing, or cleaning.
8. A coarse file, or the rough part of a file.
9. A whetstone; a rubstone.
10. An eraser, usually made of caoutchouc.
11. The cushion of an electrical machine.
12. One who performs massage, especially in a Turkish bath.
13. Something that chafes or annoys; hence, something that grates on the feelings; a sarcasm; a rub.
14. In some games, as whist, the odd game, as the third or the fifth, when there is a tie between the players; as, to play the rubber; also, a contest determined by the winning of two out of three games; as, to play a rubber of whist.
15. India rubber; caoutchouc.
16. An overshoe made of India rubber. latex from trees returned for lack of funds; "a rubber check"; "a no-good check" made of rubber and therefore water-repellent; "rubber boots".
17. 1. Rubber is a strong, waterproof, elastic substance made from the juice of a tropical tree or produced chemically. It is used for making tyres, boots, and other products. the smell of burning rubber.
18. Rubber things are made of rubber. rubber gloves.
19. A rubber is a small piece of rubber or other material that is used to remove mistakes that you have made while writing, drawing, or typing.
20. A rubber is a condom. Flexible material that can recover its shape after considerable deformation. The best-known rubber is natural rubber, made from the milky latex of the rubber tree (Hevea brasiliensis). Natural rubber is still important industrially, but it now competes with synthetic alternatives (e.g., neoprene, silicone) derived from petroleum, natural gas, and other source materials. Rubber's usefulness is based on the unique elasticity of its constituent polymer molecules (built of thousands of isoprene monomers; see:
isoprenoid), which are capable of returning to their original coiled shape after being stretched to great extents; it is made more durable by vulcanization with sulfur or another agent that establishes chemical cross-links between the polymers. Fillers and other additives allow tailoring of properties to the desired use (e.g., by foaming, shaping, and curing). More than half of all rubber goes into making tires; the rest is used principally in belts, hoses, gaskets, shoes, clothing, furniture, and toys. rubber plant India rubber plant rubber tree.