Word
caoutchouc
/ˈkautʃuk/
noun
生橡胶；天然橡胶
An elastic material obtained from the latex sap of trees, especially Hevea and Ficus, that can be vulcanized into various products.
- 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
橡胶
橡胶；纯橡胶；生橡胶；[化] 生橡胶
In use
The soles of these old boots are made of caoutchouc.
Workers collected caoutchouc from the rubber trees and shipped it to the factory.
Because caoutchouc softens in heat, the lab stores it in a cool place.
Common mistakes
There are several caoutchoucs in the lab.There is some caoutchouc in the lab.
Caoutchouc 是不可数名词，不能用复数形式。应使用 some 或 a quantity of 表示数量。
This eraser is made of caoutchouc.This eraser is made of rubber.
Caoutchouc 专指未加工的纯橡胶，日常用品如橡皮擦通常用加工后的橡胶制成，因此用 rubber 更自然。
Connections
Dictionary facts from ECDICT, WIKTIONARY.