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Definitions for: Proportional [n] one of the quantities in a mathematical proportion
[adj] properly related in size or degree or other measurable characteristics; usually followed by `to'; "punishment oughtt to be proportional to the crime"; "earnings relative to production"
[adj] increasing as the amount taxed increases
Webster (1913) Definition: Pro*por"tion*al, a. [L. proportionalis: cf. F.
proportionnel.]
1. Having a due proportion, or comparative relation; being in
suitable proportion or degree; as, the parts of an edifice
are proportional. --Milton.
2. Relating to, or securing, proportion. --Hutton.
3. (Math.) Constituting a proportion; having the same, or a
constant, ratio; as, proportional quantities; momentum is
proportional to quantity of matter.
Proportional logarithms, logistic logarithms. See under
Logistic.
Proportional scale, a scale on which are marked parts
proportional to the logarithms of the natural numbers; a
logarithmic scale.
Proportional scales, compasses, dividers, etc.
(Draughting), instruments used in making copies of
drawings, or drawings of objects, on an enlarged or
reduced scale.
Pro*por"tion*al, n.
1. (Math.) Any number or quantity in a proportion; as, a mean
proportional.
2. (Chem.) The combining weight or equivalent of an element.
[Obs.]
Synonyms: graduated, progressive, proportionate, relative
See Also: proportion, proportionality, quantity
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