reaction

As nouns the difference between surgery and reaction

is that surgery is (medicine) a procedure involving major incisions to remove, repair, or replace a part of a body while reaction is .

As nouns the difference between reaction and awareness

is that reaction is while awareness is the state or level of consciousness where sense data can be confirmed by an observer.

As nouns the difference between reaction and proactiveness

is that reaction is while proactiveness is the state or condition of being proactive.

As nouns the difference between correspondence and reaction

is that correspondence is (uncountable) friendly discussion while reaction is .

As nouns the difference between reaction and backfire

is that reaction is while backfire is (firefighting).

As a verb backfire is

(of a gun or cannon) to fire in the opposite direction, for example due to an obstruction in the barrel.

As nouns the difference between revolution and reaction

is that revolution is revolution while reaction is .

As a verb reactivated

is (reactivate).

As a noun reaction is

.

As nouns the difference between conclusion and reaction

is that conclusion is the end, finish, close or last part of something while reaction is an action or statement in response to a stimulus or other event.

As nouns the difference between thrill and reaction

is that thrill is a trembling or quivering, especially one caused by emotion while reaction is an action or statement in response to a stimulus or other event.

As a verb thrill

is to suddenly excite someone, or to give someone great pleasure; to (figuratively) electrify; to experience such a sensation.

Behaviour is a synonym of reaction.

As nouns the difference between behaviour and reaction

is that behaviour is the way a living creature behaves or acts while reaction is .