1834, from Greek kation "going down," neuter present participle of katienai "to go down," from kata "down" (see cata-) + ienai "to go" (see ion). Proposed by the Rev. William Whewell (1794-1866), English polymath, and published by English physicist Michael Faraday.
实用例句
1. Messaging allows real-time communi-cation by keyboard with up to five people at any one time.
电子信息发送能使多至5人同时通过键盘进行实时交流。
来自柯林斯例句
2. A spokesman said: "We have no comment regarding the publi-cation of these photographs."
一位发言人说，“对于这些照片的公之于众，我们不予置评。”
来自柯林斯例句
3. Cation exchange capacity generally increases with an increase in broken bonds.
通常阳离子交换量随破裂增加而增大.
来自辞典例句
4. An increase in cation exchange capacity of the tissue should be observed.