Measurement

n. calculation of size or extent; assessment of capacity or dimension; system of measures (liquid measurement, dry measurement)

Measurement is the estimation of the magnitude of some attribute of an object, such as its length or weight, relative to a unit of measuremnt. Measurement usually involves using a measuring instrument, such as a ruler or scale, which is calibrated to compare the object to some standard, such as a meter or a kilogram. In science, however, where accurate measurement is crucial, a measurement is understood to have three parts: first, the measurement itself, second, the margin of error, and third, the confidence level -- that is, the probability that the actual property of the physical object is within the margin of error. For example, we might measure the length of an object as 2.34 meters plus or minus 0.01 meter, with a 95 onfidence level.
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Noun
1. the act or process of measuring; "the measurements were carefully done"; "his mental measurings proved remarkably accurate"
(synonym) measuring, measure, mensuration
(hypernym) activity
(hyponym) quantitative analysis, quantitative chemical analysis
(derivation) measure, mensurate, measure out

(n.)
The extent, size, capacity, amount. or quantity ascertained by measuring; as, its measurement is five acres.
  

(n.)
The act or result of measuring; mensuration; as, measurement is required.
  

<testing> The act or process of measuring; a figure, extent, or amount obtained by measuring.
(1996-12-27)