Definition of subzero in English:

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subzero

Pronunciation: /ˌsəbˈzirō/

adjective

1Below zero on the Fahrenheit scale (-18 Celsius); very cold.
1.1Below zero on the Celsius scale; below freezing.
Example sentences
  • It can feel relatively warm, even in sub-zero temperatures, if the sky is clear and the sun is shining, while a higher temperature can feel relatively cool if accompanied by a biting cold wind.
  • In very heavy seas, gales, blizzards and sub-zero temperatures and darkness six people including a girl aged 12 were rescued.
  • The battle was fought on a freezing cold Palm Sunday, with soldiers facing blizzards and sub-zero temperatures.

For editors and proofreaders

Syllabification: sub·ze·ro

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