正电子 (zhēng diàn zi) — positron

Definition

noun
positron
Measure word · 个

Examples

  • 正电子。
    zhēng diàn zi Shì diàn zǐ de fǎn lì zǐ.
    Positrons are the antiparticles of electrons.
  • 正电子。
    Kē xué jiā zài shí yàn zhōng tàn cè dào le zhēng diàn zi.
    Scientists detected positrons in the experiment.
  • 正电子。
    zhēng diàn zi Yǔ diàn zǐ pèng zhuàng shí huì yān miè.
    Positrons annihilate when colliding with electrons.

Origin

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.

正zhèngpositive
电子electron
电diànelectric子zǐparticle
偏正Modifier + head

正 means positive and 电子 means electron, together a positive electron.

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
Sound part声符shēngfú
丁
丁dīng正zhèng
Same sound today

正 pairs 止 with 丁; 止 marks the sense and 丁 gives the sound.

Open 正 →

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 電; 电 is its simplified writing.

Meaning part形符xíngfú
雨雨yǔrain
Sound part声符shēngfú
申
申shēn電diàn
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

For the traditional form 電, 雨 (rain) sits with 申, read shēn and meaning lightning.

Open 电 →

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

子 is drawn as a baby with a large head, arms stretched out, and legs wrapped in a blanket.

Open 子 →

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