proportional

proportional is defined in Webster's Unabridged Dictionary (1913) with 4 senses, and appears in Roget's Thesaurus (1911) with 34 related terms. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.Relating to, or securing, proportion. Hutton.
  2. 2.(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.
  3. 3.(Math.) Any number or quantity in a proportion; as, a mean proportional.
  4. 4.(Chem.) The combining weight or equivalent of an element. [Obs.]

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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