二氧化碳 (èr yǎng huà tàn) — carbon dioxide

Definition

noun
carbon dioxide

Examples

  • 二氧化碳
    Wǒ men hū xī shí huì hū chū èr yǎng huà tàn.
    We exhale carbon dioxide when we breathe.
  • 二氧化碳
    Gōng chǎng yīng gāi jiǎn shǎo èr yǎng huà tàn de pái fàng.
    Factories should reduce carbon dioxide emissions.
  • 二氧化碳
    Kě lè zhōng hán yǒu èr yǎng huà tàn, hē qǐ lái yǒu qì pào.
    Cola contains carbon dioxide, and it tastes fizzy.

Origin

Characters in this word

An abstract idea shown by a mark or a diagram rather than by a picture of an object.

二 is drawn as two parallel strokes, where the number of strokes shows the amount.

Open 二 →

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
gas
Sound part声符shēngfú
yǎngyǎng
Same sound today

氧 pairs 气 (gas) with 養 (to nourish), and 養 gives the sound yǎng.

Open 氧 →

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

化 shows two person figures, one upright and one upside down, to give the idea of reversal or change.

Open 化 →

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

  • shí{{qualifier|chemical nomenclature}} non-metal solid
  • tàncharcoal

碳 pairs 石, marking a non-metal solid, with 炭 (charcoal), which gives the pronunciation.

Open 碳 →

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