### Definition of Ratio

**1.** *Noun.* The relative magnitudes of two quantities (usually expressed as a quotient).

**Gross Margin**,

**Margin Of Profit**,

**Profit Margin**,

**Abundance**,

**Abundance**,

**Albedo**,

**Reflective Power**,

**Aspect Ratio**,

**Average**,

**Breadth Index**,

**Cephalic Index**,

**Cranial Index**,

**Efficiency**,

**Facial Index**,

**F Number**,

**Focal Ratio**,

**Speed**,

**Stop Number**,

**Frequency**,

**Relative Frequency**,

**Haematocrit**,

**Hematocrit**,

**Packed Cell Volume**,

**I.q.**,

**Intelligence Quotient**,

**Iq**,

**Load Factor**,

**Loss Ratio**,

**Mach Number**,

**Magnification**,

**Mechanical Advantage**,

**Fuel Consumption Rate**,

**Gas Mileage**,

**Gasoline Mileage**,

**Mileage**,

**Betting Odds**,

**Odds**,

**Magnitude**,

**Order Of Magnitude**,

**Output-to-input Ratio**,

**Prevalence**,

**P/e Ratio**,

**Price-to-earnings Ratio**,

**Productivity**,

**Proportionality**,

**Quotient**,

**Index Of Refraction**,

**Refractive Index**,

**Relative Humidity**,

**Respiratory Quotient**,

**Factor Of Safety**,

**Safety Factor**,

**S/n**,

**Signal-to-noise**,

**Signal-to-noise Ratio**,

**Signal/noise**,

**Signal/noise Ratio**,

**Stoichiometry**,

**Time Constant**,

**Employee Turnover**,

**Turnover**,

**Turnover Rate**,

**Loading**,

**Eccentricity**

Generic synonyms:

**Magnitude Relation**,

**Quantitative Relation**

**2.**

*Noun.*The relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree. "A dry martini has a large proportion of gin"

### Definition of Ratio

**1.** *n.* The relation which one quantity or magnitude has to another of the same kind. It is expressed by the quotient of the division of the first by the second; thus, the ratio of 3 to 6 is expressed by &frac36; or ½; of *a* to *b* by *a:b = b/a*.

### Definition of Ratio

**1.** Noun. A number representing a comparison between two things. ¹

**2.** Noun. (arithmetic) The relative magnitudes of two quantities (usually expressed as a quotient). ¹

**3.** Noun. (legal) Short for ratio decidendi. ¹

¹ *Source: wiktionary.com*

### Definition of Ratio

**1.** a proportional relationship [n -TIOS]

### Medical Definition of Ratio

**1.**
1.

### Ratio Pictures

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### Lexicographical Neighbors of Ratio

### Literary usage of Ratio

Below you will find example usage of this term as found in modern and/or classical literature:

**1.** *The Encyclopedia Americana: A Library of Universal Knowledge* (1918)

"Bimetallism does not rest upon any natural particular **ratio**; the coinage ...
The **ratio** states the proportion existing between the silver dollar and the gold ..."**2.** *Science* by American Association for the Advancement of Science (1896)

"When, however, this **ratio** is combined with the **ratio** of the densities given ...
Scott has recently determined f the volumetric **ratio** and finds the value ..."**3.** *The Thirteen Books of Euclid's Elements* by Euclid, Johan Ludvig Heiberg (1908)

""Treat **ratio**," says De Morgan, "as an engine of ope**ratio**n. Let that of A to B
suggest the power of altering any magnitude in that **ratio**. ..."