proportional

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proportional (comparative more proportional, superlative most proportional)

1. (mathematics) At a constant ratio (to). Two magnitudes (numbers) are said to be proportional if the second varies in a direct relation arithmetically to the first. Symbol: ∝.
   • 2012, David Ben-Chaim, Ratio and Proportion, page 34:

     For example, according to the gas laws, pressure is directly proportional to temperature: the quotient derived from pressure (numerator) and temperature (denominator) will be constant; however, pressure is inversely proportional to volume, meaning that the product between volume and pressure will be constant.

2. (chiefly US) In proportion (to), proportionate.
   • 2014, Aravind Shenoy, Learning Bootstrap:

     This ensures consistency across your website design so that you don't end up with elements that are not adequately proportional with each other.

3. Of a typeface, having characters with natural (non-uniform) width (in contrast to monospace typefaces).
   • 2013, Eric A. Meyer, CSS Fonts: Web Typography Possibilities, page 2:

     A font is proportional if all characters in the font have different widths due to their various sizes.

proportional (plural proportionals)

1. (mathematics, geometry, archaic) A proportion.
   • 1828, William Thomas Brande, Tables in Illustration of the Theory of Definite Proportionals, page xiii:

     It is almost superfluous to remark that the numbers attached to the elements of compounds are those of the proportionals in which they combine […]

Proportion +‎ -al, from Latin prōportiōnālis. Doublet of proportionell.

• IPA^(key): /ˌpʁopɔʁt͡si̯oˈnaːl/

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proportional (strong nominative masculine singular proportionaler, comparative proportionaler, superlative am proportionalsten)

1. proportional

   Synonym: proportionell

• “proportional” in Digitales Wörterbuch der deutschen Sprache
• “proportional” in Uni Leipzig: Wortschatz-Lexikon
• “proportional” in Duden online