Reaction - Definition
reaction
n 1: (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" [syn: chemical reaction,
reaction]
2: an idea evoked by some experience; "his reaction to the news
was to start planning what to do"
3: 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" [syn:
reaction, response]
4: (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"
5: 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"
6: extreme conservatism in political or social matters; "the
forces of reaction carried the election"
7: doing something in opposition to another way of doing it that
you don't like; "his style of painting was a reaction against
cubism"