| NOUN | substance | India rubber, rubber, natural rubber, gum elastic, caoutchouc | an elastic material obtained from the latex sap of trees (especially trees of the genera ... / genera Hevea and Ficus) that can be vulcanized and finished into a variety of products |
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| Meaning | An elastic material obtained from the latex sap of trees (especially trees of the genera ... / genera Hevea and Ficus) that can be vulcanized and finished into a variety of products. | |
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| Synonyms | rubber, natural rubber, gum elastic, caoutchouc | |
| Narrower | Para rubber | A type of natural rubber obtained from tropical South American trees |
| cold rubber | A rubber made at low temperatures (5 degrees Centigrade) which is tougher than conventional rubber and is often used in car tires | |
| crepe rubber | crude natural rubber | |
| foam rubber | spongy rubber | |
| hard rubber, vulcanite, ebonite | A hard nonresilient rubber formed by vulcanizing natural rubber | |
| Broader | latex | A milky exudate from certain plants that coagulates on exposure to air |
| Catalan | goma | |