PROPORTIONAL • E-FREE TRANSLATION.COM • Definition of Proportional

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/prəpˈɔrʃənəl/ Listen

adjective

Proportional adj.

1.

Having a due proportion, or comparative relation; being in suitable proportion or degree; as, the parts of an edifice are proportional.

2.

Relating to, or securing, proportion.

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, Proportional compasses, Proportional dividers, etc. (Draughting), instruments used in making copies of drawings, or drawings of objects, on an enlarged or reduced scale.

noun

Proportional 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.)

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Etymology of 'Proportional'

Collaborative International Dictionary of English 0.48

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"Proportional" Quotes from Famous Books

... a second,' and the American was satisfied; but Professor Thomson enunciated the law of retardation, and cleared up the whole matter. He showed that the velocity of a signal through a given core was inversely proportional to the square of the length of the core. That is to say, in any particular cable the speed of a signal is diminished to one-fourth if the length is doubled, to one-ninth if it is trebled, to one-sixteenth if it is quadrupled, and so on. It was now possible ...

— Heroes of the Telegraph • J. Munro

... M. Deshayes of Paris, already celebrated as a conchologist, had been led independently by the study of a large collection of Recent and fossil shells to very similar views respecting the possibility of arranging the Tertiary formations in chronological order, according to the proportional number of species of shells identical with living ones, which characterised each of the successive groups above mentioned. After comparing 3000 fossil species with 5000 living ones, the result arrived at was, that in the lower Tertiary strata there were about 3 ...

— The Antiquity of Man • Charles Lyell

... mental stimuli is always relative. The psychologist knows the experiments which determine that we perceive the difference of impressions as alike when the stimuli are proportional. If I have a ten-pound weight in one hand, I may find that I must have one pound more in the other hand to discriminate the difference. Now if I take twenty pounds in the one hand, then it is not sufficient to have one pound more in ...

— Psychotherapy • Hugo Muensterberg

... is the second factor of good organization. A cursory study of a well-organized chapter or merely passing attention to a well-organized lecture reveals at once a distinct difference in the emphasis on the various parts or elements of the subject. The proportional allotment of time or space, the number of illustrations, the number of questions asked on a given point, the force of language—these are all means of bringing out the relative importance of constituent topics or principles. ...

— College Teaching - Studies in Methods of Teaching in the College • Paul Klapper

... another question. How are you to subdivide these magisterial districts for the purpose of allocating members? Some will have two, some three, some a number of members; and on what system will you allocate the members to these divisions? We have considered the question of proportional representation. It is the only perfect way in which minorities of every shade and view and interest can receive effective representation. And Lord Elgin was careful to instruct the Committee as a special point to inquire into the possibility of adopting the ...

— Liberalism and the Social Problem • Winston Spencer Churchill

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