How to pronounce reaction:
Example: "There was a chemical reaction of the lime with the ground water"
Example: "His reaction to the news was to start planning what to do"
Example: "A bad reaction to the medicine"
Example: "Every action has an equal and opposite reaction"
Example: "He was pleased by the audience's reaction to his performance"
Example: "The forces of reaction carried the election"
Example: "His style of painting was a reaction against cubism"