proportional Meaning, Definition & Usage

  1. noun one of the quantities in a mathematical proportion
  2. adjective satellite properly related in size or degree or other measurable characteristics; usually followed by `to'
    relative.
    • the punishment ought to be proportional to the crime
    • earnings relative to production
  3. adjective satellite having a constant ratio

WordNet

Pro*por"tion*al adjective
Etymology
L. proportionalis: cf. F. proportionnel.
Definitions
  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.
Pro*por"tion*al noun
Definitions
  1. (Math.) Any number or quantity in a proportion; as, a mean proportional.
  2. (Chem.) The combining weight or equivalent of an element. Obs.

Webster 1913