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ratio

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Accounting Ratios
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ra⋅tio

  [rey-shoh, -shee-oh]
Use ratio in a Sentence
–noun, plural -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. Finance. the relative value of gold and silver in a bimetallic currency system.
Origin:
1630–40; < L ratiō a reckoning, account, calculation, deriv. (see -tion ) of the base of rērī to judge, think
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Accounting Ratios
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ra·tio   (rā'shō, rā'shē-ō')   
n.   pl. ra·tios

  1. Relation in degree or number between two similar things.

  2. The relative value of silver and gold in a currency system that is bimetallic.

  3. Mathematics A relationship between two quantities, normally expressed as the quotient of one divided by the other: The ratio of 7 to 4 is written 7:4 or 7/4.


[Latin ratiō, calculation, from ratus, past participle of rērī, to reckon, consider; see ar- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Cultural Dictionary

ratio [(ray-shee-oh, ray-shoh)]

An expression of the relative size of two numbers by showing one divided by the other.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

ratio 
1636, "reason, rationale," from L. ratio "reckoning, calculation, business affair, procedure," also "reason," from rat-, pp. stem of reri "to reckon, calculate," also "think" (see reason). Mathematical sense is attested from 1660.
Online Etymology Dictionary, © 2001 Douglas Harper
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Financial Dictionary

ratio

The relation between two quantities when compared mathematically with one another. For example, the most frequently used ratio among investors is the price-earnings ratio. Financial analysts, investors, and managers use ratios to evaluate many factors such as the attractiveness of a stock or the operating efficiency of a company. Also called financial ratio. See also activity ratio, debt management ratio, liquidity ratio, profitability ratio.

Wall Street Words: An A to Z Guide to Investment Terms by David L. Scott.
Copyright © 2003. Published by Houghton Mifflin.
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Medical Dictionary

Main Entry: ra·tio
Pronunciation: 'rA-(")shO, -shE-"O
Function: noun
Inflected Form: plural ra·tios
: the relationship inquantity, amount, or size between two or more things —see SEX RATIO
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

ratio ra·tio (rā'shō, rā'shē-ō')
n. pl. ra·tios

  1. Relation in degree or number between two similar things.

  2. The relation between two quantities expressed as the quotient of one divided by the other.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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