重水 (zhòng shuǐ) — heavy water (deuterium oxide, D2O)

Definition

noun
heavy water (deuterium oxide, D2O)

Examples

  • 重水。
    zhòng shuǐ Bǐ pǔ tōng shuǐ zhòng.
    Heavy water is heavier than ordinary water.
  • 重水。
    Kē xué jiā zài yán jiū zhòng shuǐ de xìng zhì.
    Scientists are studying the properties of heavy water.
  • 重水。
    Zhè zhǒng yè tǐ shì zhòng shuǐ.
    This type of liquid is heavy water.

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.

重 heavy and 水 water combine to name heavy water.

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
人人rénman
Sound part声符shēngfú
東
東dōng重zhòng
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

重 developed from a picture of a man carrying a bag, with 人 for the man and 東 for the bag; a later ground element was folded into the form.

Open 重 →

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

水 is a simple drawing of water flowing.

Open 水 →

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