冷熱(れいねつ)

れいねつ
noun
cold and heat; thermal variation
science
1. cold and heat; thermal variation
The contrast or range between cold and hot temperatures. Used in technical, engineering, and everyday contexts to discuss temperature fluctuations and their effects on materials or environments.
冷熱(れいねつ)の差(さ)が激(はげ)しい。
The difference between cold and heat is extreme.
この素材(そざい)は冷熱(れいねつ)に強(つよ)い。
This material is resistant to thermal variation.
冷熱(れいねつ)サイクル試験(しけん)で製品(せいひん)の耐久性(たいきゅうせい)を確認(かくにん)する。
We verify product durability through thermal cycling tests.

A compound of 冷(れい) (cold) and 熱(ねつ) (heat). This is an example of a paired-opposite compound (対義(たいぎ)複合語(ふくごうご)), similar to 寒暖(かんだん) (cold and warm). Frequently appears in engineering and materials science contexts.

Common collocations

  • 冷熱(れいねつ)サイクル: thermal cycle
  • 冷熱(れいねつ)試験(しけん): thermal test
  • 冷熱(れいねつ)の差(さ): temperature difference
  • 冷熱(れいねつ)に強(つよ)い: resistant to temperature extremes

Similar words

  • 寒暖(かんだん): cold and warm — refers to atmospheric temperature variation, as in weather or seasonal changes
  • 温度(おんど): temperature — the measurement of heat itself
  • 温冷(おんれい): warm and cold — used in contexts like alternating hot and cold baths (温冷(おんれい)浴(よく))

Related Words

Compare: 寒暖(かんだん) (cold and warm)
Compare: 温度(おんど) (temperature)
general
Added 2026.5.2 20:29 · Revised 2026.9.2 13:02
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