释义 |
cy·a·nide I. \ˈsīəˌnīd, -_nə̇d\ noun (-s) Etymology: International Scientific Vocabulary cyan- + -ide 1. : a compound of cyanogen usually with a more electropositive element or radical : a salt or ester of hydrocyanic acid — see nitrile 2. a. : potassium cyanide b. : sodium cyanide II. \-ˌnīd\ transitive verb (-ed/-ing/-s) : to treat with a cyanide: as a. : to subject to the cyanide process b. : to treat (iron or steel) by immersion in molten cyanide in order to produce a hard surface by causing carbon and nitrogen to be taken up in a thin outer layer — see case harden c. : to fumigate (as greenhouses or flour) with hydrogen cyanide gas |