聚碳酸酯 (jù tàn suān zhǐ) — polycarbonate

Definition

noun
polycarbonate

Examples

  • 聚碳酸酯。
    Zhè zhǒng jù tàn suān zhǐ de qiáng dù hěn gāo.
    This type of polycarbonate has very high strength.
  • 聚碳酸酯。
    Yǎn jìng piàn cháng yòng jù tàn suān zhǐ zhì zào.
    Eyeglass lenses are often made from polycarbonate.
  • 聚碳酸酯。
    jù tàn suān zhǐ Shì yì zhǒng tòu míng de sù liào.
    Polycarbonate is a type of transparent plastic.

Origin

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
乑乑yínthree men
Sound part声符shēngfú
取
取qǔ聚jù
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

聚 is built from 取, which gives the sound, and 乑, drawn as three men, to show people coming together.

Open 聚 →

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

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

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

Open 碳 →

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
酉酉yǒu
Sound part声符shēngfú
夋
夋qūn酸suān
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

酸 is built from 酉 and 夋, and 夋 gives the sound.

Open 酸 →

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
酉酉yǒuoxygenated functional group
Sound part声符shēngfú
旨
旨zhǐ酯zhǐ
Same sound today

The left 酉 part marks it as an oxygenated organic compound, and the right 旨 part gives the sound.

Open 酯 →

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