正せい触しょく媒ばい

noun

positive catalyst

Technical term in chemistry for a catalyst that increases the rate of a reaction. Contrasts with 負触媒 (negative catalyst/inhibitor).

See also: 負触媒

• この反はん応のうでは正せい触しょく媒ばいとして白はっ金きんが使つかわれる。

  Platinum is used as a positive catalyst in this reaction.