verb HSK 5
níng
to solidify · to coagulate · to congeal · to freeze

Meaning

凝固 describes the process of a liquid becoming solid, typically through cooling or a chemical reaction. It can refer to water freezing, blood clotting, wax hardening, or any substance transitioning from liquid to solid state. The word carries a scientific or formal tone and is commonly used in chemistry, physics, and medical contexts.

Usage

This is a moderately formal term used in scientific, technical, and medical contexts. In everyday speech, simpler words like 冻住 (dòng zhù) might be preferred for freezing. 凝固 often appears in written Chinese and academic discussions about phase transitions, blood coagulation, or material properties.

Examples

  1. 01
    水在零度时会凝固成冰。
    Shuǐ zài líng shí huì níng chéng bīng.
    Water solidifies into ice at zero degrees.
  2. 02
    伤口流出的血很快就凝固了。
    Shāng kǒu liú chū de xuè hěn kuài jiù níng le.
    The blood flowing from the wound quickly coagulated.

Characters

Common collocations

  • 凝固
    níng diǎn
    freezing point
  • 血液凝固
    xuè níng
    blood coagulation
  • 凝固
    níng
    coagulant, solidifying agent

Antonyms

Origin

Both characters relate to the concept of becoming firm or stable. 凝 originally depicted ice forming, while 固 represents something enclosed and stable, together expressing the transition to a solid state.

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