Effect may refer to:
- A result or change of something
- List of effects
- Cause and effect, an idiom describing causality
In pharmacy and pharmacology:
- Drug effect, a change resulting from the administration of a drug
- Therapeutic effect, a beneficial change in medical condition, often caused by a drug
- Adverse effect or side effect, an unwanted change in medical condition caused by a drug
- Dose-response effect, the relationship between a drug dose and its effect, plotted on a dose-response curve
In media:
- Special effect, an artificial illusion
- Sound effect, an artificially created or enhanced sound
- Visual effects, artificially created or enhanced images
- Audio signal processing
- Effects unit, a device used to manipulate electronic sound
- Effects pedal, a small device attached to an instrument to modify its sound
- Effects unit, a device used to manipulate electronic sound
Miscellaneous:
- Effects, one's personal property or belongings
- Effects (G.I. Joe), a fictional character in the G.I. Joe universe
- Effects (film), a 2005 film
- Effect size, a measure of the strength of a relationship between two variables
- Effect system, formal system which describes the computational effects of computer programs
Amendments to the constitution of the United States: (Bill of Rights) Amendment IV "The right of the people to be secure in their persons, house, papers, and effects...
Famous quotes containing the word effect:
“At first I intended to become a student of the Senate rules and I did learn much about them, but I soon found that the Senate had but one fixed rule, subject to exceptions of course, which was to the effect that the Senate would do anything it wanted to do whenever it wanted to do it.”
—Calvin Coolidge (1872–1933)
“The cities of the world are concentric, isomorphic, synchronic. Only one exists and you are always in the same one. It’s the effect of their permanent revolution, their intense circulation, their instantaneous magnetism.”
—Jean Baudrillard (b. 1929)
“Self-denial is not a virtue: it is only the effect of prudence on rascality.”
—George Bernard Shaw (1856–1950)