氰化 (qíng huà) — (verb) to treat with cyanide; to cyanide

Definition

Chemistry term meaning to treat or combine with cyanide (qíng), the highly toxic CN compound. Almost always appears in technical/industrial contexts such as 氰化法 (cyanide process) for gold extraction or 氰化钾 (potassium cyanide).

verb
to treat with cyanideto cyanide

Examples

  • 氰化
    Gōng chǎng yòng qíng huà gōng yì tí qǔ huáng jīn.
    The factory uses the cyanidation process to extract gold.
  • 氰化
    Zhè zhǒng cái liào jīng guò qíng huà chǔ lǐ hòu biàn yìng.
    This material hardens after being treated with cyanide.
  • 氰化
    qíng huà Fǎn yìng zài gōng yè zhōng hěn wēi xiǎn.
    The cyanide reaction is very dangerous in industry.

Origin

Derived word
构词法gòucífǎ
后缀hòuzhuìSuffix

A fixed syllable at the end that turns the word into a noun, a person, a place or the like.

qíngcyanide
huàchange

氰 (cyanide) and 化 (change) combine to mean treating with cyanide.

Characters in this word

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
gas
Sound part声符shēngfú
qīngqíng
Same sound today

氰 used for cyanogen, combines 气, showing it is a gas, with 青 to give the sound qīng.

Open 氰 →

Two or more meaningful parts placed together so that their meanings combine into a new one.

化 shows two person figures, one upright and one upside down, to give the idea of reversal or change.

Open 化 →

Browse more HSK 7-9 words or search the full 43,000-word dictionary.