失しっ活かつ

noun

deactivation; inactivation

Technical term used in chemistry and related fields for the loss of activity, especially of a catalyst, enzyme, or reactive species.

• 触しょく媒ばいの失しっ活かつが反はん応のう速そく度どの低てい下かを招まねいた。

  Deactivation of the catalyst caused a decrease in the reaction rate.

• 酵こう素そは高こう温おんで失しっ活かつする。

  The enzyme is inactivated at high temperatures.