Meaning of ratio

ra•tio

Pronunciation: (rā'shō, -shē-ō"), [key]
— pl. -tios.
  1. the relation between two similar magnitudes with respect to the number of times the first contains the second: the ratio of 5 to 2, written 5:2 or 5/2.
  2. proportional relation; rate: the ratio between acceptances and rejections.
  3. the relative value of gold and silver in a bimetallic currency system.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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