reaction
— Noun
– English
～ (chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water"
reaction
— Noun
– English
～ a response that reveals a person's feelings or attitude; "he was pleased by the audience's reaction to his performance"; "John feared his mother's reaction when she saw the broken lamp"
reaction
— Noun
– English
～ extreme conservatism in political or social matters; "the forces of reaction carried the election"
reaction
— Noun
– English
～ a bodily process occurring due to the effect of some antecedent stimulus or agent; "a bad reaction to the medicine"; "his responses have slowed with age"
reaction-propulsion engine
— Noun
– English
～ a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream
reaction
— Noun
– English
～ (mechanics) the equal and opposite force that is produced when any force is applied to a body; "every action has an equal and opposite reaction"
reaction propulsion
— Noun
– English
～ propulsion that results from the ejection at high velocity of a mass of gas to which the vehicle reacts with an equal and opposite momentum
reaction
— Noun
– English
～ doing something in opposition to another way of doing it that you don't like; "his style of painting was a reaction against cubism"
reaction engine
— Noun
– English
～ a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream
reaction formation
— Noun
– English
～ (psychiatry) a defense mechanism in which a person unconsciously develops attitudes and behavior that are the opposite of unacceptable repressed desires and impulses and serve to conceal them; "his strict morality is just a reaction formation to hide his sexual drive"
reactionary
— Noun
– English
～ an extreme conservative; an opponent of progress or liberalism
reactionary
— Adjective
– English
～ opposed to political or social liberalism or reform
reactionism
— Noun
– English
～ the political orientation of reactionaries
reactionist
— Adjective
– English
～ opposed to political or social liberalism or reform
reactivate
— Verb
– English
～ activate (an old file) anew
reactive depression
— Noun
– English
～ an inappropriate state of depression that is precipitated by events in the person's life (to be distinguished from normal grief)
reactive
— Adjective
– English
～ reacting to a stimulus; "the skin of old persons is less reactive than that of younger persons"
reactive
— Adjective
– English
～ participating readily in reactions; "sodium is a reactive metal"; "free radicals are very reactive"
reactivity
— Noun
– English
～ ready susceptibility to chemical change
reactivity
— Noun
– English
～ responsive to stimulation