(léi) — radium

Definition

noun
radium

Examples

  • Jū lǐ fū rén fā xiàn le léi zhè zhǒng fàng shè xìng yuán sù.
    Madame Curie discovered the radioactive element radium.
  • léi De fā xiàn duì yī xué zhì liáo yǒu zhòng yào yì yì.
    The discovery of radium has significant implications for medical treatment.
  • Zǎo qī zhōng biǎo céng yòng léi lái ràng zhǐ zhēn fā guāng.
    Early clocks and watches once used radium to make the hands glow.

Origin

Sound + meaning
六书liùshū
形声xíngshēng

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 鐳; 镭 is its simplified writing.

Meaning part形符xíngfú
jīnmetal
Sound part声符shēngfú
léiléi
Same sound today

The traditional form 鐳 has 金 (metal) beside 雷, which gives the sound; the simplified 镭 is a later abbreviation.

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