Webster's Revised Unabridged Dictionary · 1913

Rubber

Rubber , noun

1.
One who, or that which, rubs.
(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 or a synthetic rubber[4].
(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. — Thackeray
2.
In some games, as bridge or whist, the odd game, as the third or the fifth, which decides the winner 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. — Dickens
A rubber of cribbage. — Beaconsfield
3.
India rubber; caoutchouc; gum elastic; -- also called natural rubber.
4.
Any substance, whether natural or synthetic, resembling India rubber with respect to its elasticity[1].
5.
A low-cut overshoe made of natural or synthetic rubber[4], serving to keep the feet and shoes dry when walking in the rain or on a wet surface; -- usually used in the plural.
6.
A condom. [Slang]
Collocations (5)
Antimony rubber , an elastic durable variety of vulcanized caoutchouc of a red color. It contains antimony sulphide as an important constituent.
Hard rubber , a kind of vulcanized caoutchouc which nearly resembles horn in texture, rigidity, etc.
India rubber , caoutchouc. See Caoutchouc.
Rubber cloth , cloth covered with caoutchouc for excluding water or moisture.
Rubber dam (Dentistry) , a shield of thin sheet rubber clasped around a tooth to exclude saliva from the tooth.