地质 (dì zhì) — geology

Definition

地质 (dìzhì) is geology — the study of the Earth's structure and materials. Often confused with 地理 (geography, dìlǐ), which focuses on landforms, climate, and human geography.

noun
geology

Examples

  • 地质地质
    Tā yán jiū dì zhì yǐ jīng yán jiū dì zhì èr shí nián le.
    He has been studying geology for twenty years.
  • 地质
    Zhè lǐ de dì zhì tiáo jiàn shì hé jiàn dì tiě.
    The geological conditions here are suitable for building a subway.
  • 地质
    Wǒ bì yè hòu zài yì jiā dì zhì gōng sī gōng zuò.
    After graduation, I work at a geology company.

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.

earth
zhìsubstance

地 refers to the earth, and 质 to its substance or structure; together they name geology.

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

地 is built from 土 (earth) and 也, which gives its sound.

Open 地 →

Two or more meaningful parts placed together so that their meanings combine into a new one.

This origin belongs to the traditional form 質; 质 is its simplified writing.

  • yín
  • bèi

The traditional form 質 is made up of 貝 and 斦; this describes 質, not the simplified 质.

Open 质 →

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