D defs.my
Entry 5 senses · 2 variants Webster, 1913

Proportional

/prəp-ôr'-shən-əl/ · Pro·por·tion·al · IPA /prəpˈɔrʃənəl/
01 a. Having a due proportion, or comparative relation; being in suitable proportion or degree; as, the parts of an edifice are proportional.
  1. 1.
    Having a due proportion, or comparative relation; being in suitable proportion or degree; as, the parts of an edifice are proportional.
  2. 2.
    Relating to, or securing, proportion.
  3. 3.
    Constituting a proportion; having the same, or a constant, ratio; as, proportional quantities; momentum is proportional to quantity of matter.(Math.)
Phrases & compounds
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, — instruments used in making copies of drawings, or drawings of objects, on an enlarged or reduced scale.
02 n. Any number or quantity in a proportion; as, a mean proportional.
  1. 1.
    Any number or quantity in a proportion; as, a mean proportional.(Math.)
  2. 2.
    The combining weight or equivalent of an element.(Chem.) [Obs.]