|1.||something that is produced by a cause or agent; result|
|2.||power or ability to influence or produce a result; efficacy: with no effect|
|3.||the condition of being operative (esp in the phrases in or into effect): the law comes into effect at midnight|
|4.||take effect to become operative or begin to produce results|
|5.||basic meaning or purpose (esp in the phrase to that effect)|
|6.||an impression, usually one that is artificial or contrived (esp in the phrase for effect)|
|7.||a scientific phenomenon: the Doppler effect|
|a. in fact; actually|
|b. for all practical purposes|
|9.||the overall impression or result: the effect of a painting|
|10.||(tr) to cause to occur; bring about; accomplish|
|[C14: from Latin effectus a performing, tendency, from efficere to accomplish, from facere to do]|
effect ef·fect (ĭ-fěkt')
Something brought about by a cause or an agent; a result.
The power to produce an outcome or achieve a result; influence.
A scientific law, hypothesis, or phenomenon.
The condition of being in full force or execution.
Something that produces a specific impression or supports a general design or intention.
To bring into existence.
To produce as a result.
To bring about.
For all practical purposes, as in This testimony in effect contradicted her earlier statement. [Late 1500s]
In or into operation, as in This law will be in effect in January. Related phrases include and take effect, which mean "become operative," as in This law goes into effect January 1, or It takes effect January 1. Similarly, put into effect means "make operative," as in When will the judge's ruling be put into effect? [Late 1700s] Also see in force, def. 2.