核反应堆 (hé fǎn yìng duī) — nuclear reactor

Definition

noun
nuclear reactor
Measure word ·

Examples

  • 核反应堆
    Zhōng guó zhèng zài jiàn shè duō gè xīn de hé fǎn yìng duī.
    China is currently building several new nuclear reactors.
  • 核反应堆
    hé fǎn yìng duī De ān quán shè jì fēi cháng zhòng yào.
    The safety design of a nuclear reactor is extremely important.
  • 核反应堆
    Zhè ge hé fǎn yìng duī kě yǐ fā diàn shàng bǎi wàn qiān wǎ.
    This nuclear reactor can generate millions of kilowatts of electricity.

Origin

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
tree
Sound part声符shēngfú
hài
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

核 pairs 木, a tree, with 亥 to give its sound; it originally named a kind of tree, and its later meanings are borrowed.

Open 核 →

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
yòuhand
Sound part声符shēngfú
chǎngfǎn
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

反 uses 又 (hand) for meaning and 厂 for sound. Its original shape showed a hand turning its palm over, giving the sense of return or reverse.

Open 反 →

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 應; 应 is its simplified writing.

Meaning part形符xíngfú
xīnheart
Sound part声符shēngfú
yìng
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 應 pairs 心 (heart) with 䧹 as a sound part; the simplified 应 is a later shorthand and its parts are not the original components.

Open 应 →

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
earth
Sound part声符shēngfú
zhuīduī
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

堆 is built from 土 (earth) and 隹, which supplies the sound.

Open 堆 →

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