## Definitions

### from Wiktionary, Creative Commons Attribution/Share-Alike License

- proper n. If two ratios are equal, then the denominator of the second equals its numerator times the reciprocal of the first ratio: if then .
- proper n. A rule for clinical trials used for determining the rate of adverse side effects when no such side effects present during the course of the trial.
- proper n. A rule which states that things which come in groups of three are inherently funnier or more effective than things which come in groups of other sizes.
- proper n. A religious tenet stating that whatever energy a person puts out into the world, be it positive or negative, will be returned to that person three times.

### from the GNU version of the Collaborative International Dictionary of English

- n. that rule which directs, when three terms are given, how to find a fourth, which shall have the same ratio to the third term as the second has to the first; proportion. See Proportion, 5 (b).
- n. See under Rule, n.

## Etymologies

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## Examples

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## Comments

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