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:
“The pleasure of one’s effect on other people still exists in age—what’s called making a hit. But the hit is much rarer and made of different stuff.”
—Enid Bagnold (1889–1981)
“The effect of a good government is to make life more valuable; of a bad one, to make it less valuable.”
—Henry David Thoreau (1817–1862)
“Mix salt and sand, and it shall puzzle the wisest of men, with his mere natural appliances, to separate all the grains of sand from all the grains of salt; but a shower of rain will effect the same object in ten minutes.”
—Thomas Henry Huxley (1825–95)