What is the meaning of rubber?

noun

• 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.
  • synonyms: natural rubber, India rubber, gum elastic, caoutchouc
• Any of various synthetic elastic materials whose properties resemble natural rubber.
  • synonyms: synthetic rubber
• An eraser made of rubber (or of a synthetic material with properties similar to rubber); commonly mounted at one end of a pencil.
  • synonyms: rubber eraser, pencil eraser
• Contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse.
  • synonyms: condom, safety, safe, prophylactic
• A waterproof overshoe that protects shoes from water or snow.
  • synonyms: arctic, galosh, golosh, gumshoe

verb

• Coat or impregnate with rubber.
  • usage: "rubberize fabric for rain coats"
  • synonyms: rubberize, rubberise

adjective

• Returned for lack of funds.
  • usage: "a rubber check"; "a no-good check"
  • synonyms: no-good