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A person who by virtue of attaining a certain age, generally eighteen, is regarded in the eyes of the law as being able to manage his or her own affairs.

The age specified by law, called the legal age of majority, indicates that a person acquires full legal capacity to be bound by various documents, such as contracts and deeds, that he or she makes with others and to commit other legal acts such as voting in elections and entering marriage. The age at which a person becomes an adult varies from state to state and often varies within a state, depending upon the nature of the action taken by the person. Thus, a person wishing to obtain a license to operate a motor vehicle may be considered an adult at age sixteen, but may not reach adulthood until age eighteen for purposes of marriage, or age twenty-one for purposes of purchasing intoxicating liquors.

Anyone who has not reached the age of adulthood is legally considered an infant.

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


a person who has attained the age of legal majority.
Collins Dictionary of Law © W.J. Stewart, 2006

ADULT, in the civil law. An infant who, if a boy, has attained his full age of fourteen years, and if a girl, her full age of twelve. Domat, Liv. Prel. t. 2, s. 2, n. 8. In the common law an adult is considered one of full age. 1 Swanst. R. 553.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Monitoring, evaluating, and responding to the ever-changing status of those operational drivers are fundamental components of the business intelligence quotient. Even when you post financial or nondues revenue targets, be clear on the desired operational drivers that affect those financials--and track accordingly.
"While the whole world is racing towards better technology and a better cinema sense, we in Tamil Nadu are satisfied to use just enough of our intelligence to satisfy the lowest intelligence quotient.
A cohort of 38 children aged 1-7 years was compared with 63 controls in performance on a battery of cognitive, motor, language, and adaptive behavior tests, including Full Scale Intelligence Quotient tests, the Movement Assessment Battery for Children, Developmental Test of Visual-Motor Integration, and the Vineland Adaptive Behavior Scales, among others.
They examined the subjects' socioeconomic status, education, intelligence quotient (IQ), personality, psychiatric symptoms, and health-related behaviors, including alcohol consumption.
Question: Is success in life and career determined primarily by rational intelligence (the IQ or intelligence quotient) or emotional intelligence (the EQ or emotional quotient)?
An ambitious project by the BBC is giving people across South Wales the chance to find out their IQ or Intelligence Quotient in a special evening's viewing.
There is apparently no correlation between the scores of the health habit quiz and intelligence quotient, all of the coefficients being near zero and several of them being negative.
Chapter 9 entitled "Masonic Closeness" is where he suggests that many religionists evidence a high intelligence quotient in their business of religion, but with a serious retardation as to the logic of God's business.
"While business runs on brainpower, people thrive and excel on the power of emotions, or what I call emotional intelligence quotient (EQ)."
After reviewing 35 years of data, German scientists propose that merely three weeks of mental inactivity leads to an average drop of 20 IQ (intelligence quotient) points.
This new evidence is no surprise to those behind the latest rage in corporate competence - the idea of emotional intelligence (EQ) as a counterpart to intelligence quotient (IQ).
A 1996 study by Sandra and Joseph Jacobson of Wayne State University found that children exposed to low levels of PCBs in the womb grew up with a lowered Intelligence Quotient (IQ), poor reading comprehension, short- and long-term memory problems and difficulty paying attention.

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