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发热 (fā rè) — to have a fever (of a person); to emit heat, to get hot (of a machine or object); (figurative, in 头脑发热) to get excited or lose one's cool

Definition

Literary/technical verb meaning 'to generate heat' — used for machines and objects, and in the set phrase 头脑发热 ('to get hot-headed'). For a person having a fever, the everyday word is 发烧.

verb
to have a fever (of a person)to emit heatto get hot (of a machine or object)(figurative, in 头脑发热) to get excited or lose one's cool

Examples

  • 发热，。
    Tā fā rè le, tǐ wēn sān shí bā dù.
    He has a fever; his temperature is 38 degrees.
  • 发热，。
    Diàn nǎo yòng jiǔ le huì fā rè, zuì hǎo guān jī xiū xi yí xià.
    If you use the computer for a long time, it will heat up; it's best to shut it down and let it rest.
  • 发热，。
    Yù dào shì qing bié tóu nǎo fā rè, xiān lěng jìng fēn xī.
    When something happens, don't get hot-headed; first analyze it calmly.

Origin

Compound word
构词法gòucífǎ
动宾dòngbīnVerb + object

An action followed by what it acts on, fused into one word.

发fāproduce
热rèheat

"发" contributes "produce" and "热" contributes "heat", so 发热 means to produce heat.

Characters in this word

A drawing of the thing itself, worn down over three thousand years into a few strokes.

This origin belongs to the traditional form 發; 发 is its simplified writing.

The simplified 发 stands for more than one traditional character. In most words (爆发, 出发) it is 發; in others (理发, 头发) it is 髮.

The form 發, which 发 stands for in many words, was originally drawn as a bow firing an arrow.

Open 发 →

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 熱; 热 is its simplified writing.

Meaning part形符xíngfú
灬Written in full as火huǒfire
Sound part声符shēngfú
埶
埶yì熱rè
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 熱 pairs 埶 with 火 (written as 灬) to show heat, while 埶 gives a sound.

Open 热 →
Appears in
HSK 3.0 Level 7-9Illness & Symptoms

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