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(), n.[Abbrev. from unity.] 1. A single thing or person. 2. (Arith.) The least whole number; one. Units are the integral parts of any large number. I. Watts. 3. A gold coin of the reign of James I., of the value of twenty shillings. Camden. 4. Any determinate amount or quantity (as of length, time, heat, value) adopted as a standard of measurement for other amounts or quantities of the same kind. 5. (Math.) A single thing, as a magnitude or number, regarded as an undivided whole. Abstract unit, the unit of numeration; one taken in the abstract; the number represented by 1. The term is used in distinction from concrete, or determinate, unit, that is, a unit in which the kind of thing is expressed; a unit of measure or value; as 1 foot, 1 dollar, 1 pound, and the like. Complex unit (Theory of Numbers), an imaginary number of the form a + b-1, when a2 + b2 = 1. Duodecimal unit, a unit in the scale of numbers increasing or decreasing by twelves. Fractional unit, the unit of a fraction; the reciprocal スポンサード リンク
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