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Essence; the material or necessary component of something.

A matter of substance, as distinguished from a matter of form, with respect to pleadings, affidavits, indictments, and other legal instruments, entails the essential sufficiency, validity, or merits of the instrument, as opposed to its method or style.

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

SUBSTANCE, evidence. That which is essential; it is used in opposition to form.
     2. It is a general rule, that on any issue it is sufficient to prove the substance of the issue. For example, in a case where the defendant pleaded payment of the principal sum and all interest due, and it appeared in evidence that a gross sum was paid, not amounting to the full interest, but accepted by the plaintiff as full payment, the proof was held to be sufficient. 2 Str. 690; 1 Phil. Ev. 161.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Taipei, Taiwan, April 10, 2015 --( Regulation of New and Existing Chemical Substances Registration
Using substances such as alcohol or prescription drugs to relax or get to sleep can seem like an easy solution when you're stressed.
More stringent standards and a wider range of priority substances being monitored - these are the main components of an agreement reached in informal negotiations between Council, Parliament and the European Commission.
Middle- and high-school students who bully their classmates are more likely than others to use substances such as cigarettes, alcohol, and marijuana, finds a study published in Addictive Behaviors.
According to Broackes, Aristotle claims that white exists in individual white things but would not exist if those primary substances did not.
An adolescent or young adult may abuse substances in order to self-medicate after incurring a brain injury.
More substances are expected be added to the list by the European Chemicals Agency ( and EU Member States.
These regulations require the development and implementation of environmental emergency plans for 174 substances with associated thresholds that, if released to the environment as a result of an environmental emergency, may harm human health or environmental quality.
The study explored the socio-demographic factors, factors related to the initiation of substance use, types of substances used, co-morbid health and psychiatric conditions, healthcare utilisation and hurdles to accessing healthcare among people who use psychoactive substances in a treatment facility.