碘化钾 (diǎn huà jiǎ) — potassium iodide (chemical compound)

Definition

noun

potassium iodide (chemical compound)

碘化钾。
Yī shēng jiàn yì tā fú yòng diǎn huà jiǎ lái bǎo hù jiǎ zhuàng xiàn.
The doctor recommended he take potassium iodide to protect the thyroid.
碘化钾。
Zhè zhǒng diǎn huà jiǎ róng yè kě yǐ yòng yú xiāo dú.
This potassium iodide solution can be used for disinfection.
碘化钾。
Shí yàn shì lǐ xū yào yì píng gāo chún dù de diǎn huà jiǎ.
The lab needs a bottle of high-purity potassium iodide.

Compound word

构词法gòucífǎ

偏正piānzhèngModifier + head

The first part narrows down the second: it says what kind of thing the head is.

碘化iodide

碘diǎniodine化huàchemical combination

偏正Modifier + head

钾jiǎpotassium

The 碘化 'iodide' combines with 钾 'potassium' to name potassium iodide.

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.

石典碘

Meaning part形符xíngfú

Sound part声符shēngfú

典

Same sound today

碘 is made from 石, the character for stone, and 典, which gives the sound.

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.

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

This origin belongs to the traditional form 鉀; 钾 is its simplified writing.

金甲鉀

Meaning part形符xíngfú

金金jīnmetal

Sound part声符shēngfú

甲

Same sound today

The traditional form 鉀 pairs 金 (metal) with 甲 (armour) as a sound part; the simplified 钾 is a later shorthand.