Definition of rapid-reaction in English:

rapid-reaction

adjective

  • 1Chemistry. Of, relating to, or involving a rapid chemical reaction.

  • 2Military. Designating a military unit kept in a state of readiness for rapid deployment to counter hostile activity.

Origin

1930s; earliest use found in Proceedings of the Royal Society of London. From rapid + reaction.

Pronunciation

rapid-reaction

/ˌrapɪdrɪˈakʃn/