不ふ揮き発はつ性せい

noun

non-volatility

Technical term used in chemistry, computing, and materials science to describe substances or memory that do not readily evaporate or lose data when power is off.

• この物ぶっ質しつは不ふ揮き発はつ性せいなので、常じょう温おんで蒸じょう発はつしにくい。

  This substance is non-volatile, so it does not evaporate easily at room temperature.

• 不ふ揮き発はつ性せいメモリは電でん源げんを切きってもデータを保ほ持じする。

  Non-volatile memory retains data even when the power is turned off.