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As a verb, to do; to produce; to make; to bring to pass; to execute; enforce; accomplish. As a noun, that which is produced by an agent or cause; result; outcome; consequence. The result that an instrument between parties will produce in their relative rights, or which a statute will produce upon the existing law, as discovered from the language used, the forms employed, or other materials for construing it. The operation of a law, of an agreement, or an act. The phrases take effect, be in force, and go into operation, are used interchangeably.

In the plural, a person's effects are the real and Personal Property of someone who has died or who makes a will.

West's Encyclopedia of American Law, edition 2. Copyright 2008 The Gale Group, Inc. All rights reserved.

EFFECT. The operation of a law, of an agreement, or an act, is called its effect.
     2. By the laws of the United States, a patent cannot be granted for an effect only, but it may be for a new mode or application of machinery to produce effects. 1 Gallis. 478; see 4 Mason, 1; Pet. C. C. R. 394; 2 N. H. R. 61.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Considering the LRT, the best models were 2 and 3, that is, those considering maternal additive effects and maternal permanent environmental effects, respectively.
Percent of the multi-chem advisories for which a contaminant is the major contributor to the overall additive effect [assessed as a Hazard Index (HI)].
The allele inherited from KNP through the additive effects of positive values was found to have higher MCV levels compared to the "G" allele inherited from Landrace.
The additive effect of selecting naturally talented individual contributors is 6% higher revenue per employee, for a combined gain of up to 33% higher growth potential.
Higher concentration effect should be studied to evaluate the additive effect on cured coating of urethane acrylates.
The laquinimod treatment showed an additive effect in the development of renal function when combined with the standard of care.
Despite an additive effect on insulin area response and the less than additive effect on glucagon area response that was observed with this amino acid pair, coingestion of leucine + phenylalanine with glucose did not produce an additional lowering of the glucose area response compared to ingestion of each amino acid independently.
For the detection of common variants with small additive effects, generally the strategy of detection based on increased size of population sample and resolution of genomic arrays, followed by functional studies, represent the only rational approach applicable in genetic characterization of schizophrenia and other complex diseases.
We also now know that cigarette smoking is the single largest risk factor for a host of otherwise preventable causes of premature death and that it has a directly additive effect on many others.
Synergy was defined as an FICI [less than or equal to] 0.5, additive effect when 0.5 < FICI < 1.0, indifference when 1.0 [less than or equal to] FICI < 4.0, and antagonism when FICI [greater than or equal to] 4.0.
Juvisync was conceived to reduce the number of pills patients must take: There is no additive effect achieved by combining the medications in a single pill.