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1 In lay usage and the physical sciences, the number of persons a public space can accommodate, the volume of a container, the ability to carry an electric current.

2 In psychology and medicine, the legal and intellectual capability to comprehend issues and make decisions required to sign or affirm a last will and testament or other legally important documents is described as testamentary capacity, encompassed in the phrase “of sound mind” that is sometimes part of the preamble to an affidavit or will. The same word describes physical and intellectual capability to operate a motor vehicle or other machinery that becomes dangerous to the operator and others if the capability is impaired by disease, drugs, or alcohol.

Subjects: Public Health and Epidemiology.

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