noun, plural ra·tios.
Origin of ratio
Definition for ratio (2 of 2)
ultima ratio regum
Examples from the Web for ratio
During an emergency that ratio could be allowed to drop to 8.5 people per orbit.
However, the Air Force is so strapped for people that the ratio has dropped below even that reduced level.
From that, they extracted the ratio of the number of deuterium atoms to the number of hydrogen atoms.
Two years ago, Asian American voters voted for Obama over Romney by a ratio of more than 3-to-1.Asian Americans Are The Country’s Fastest Growing Swing Vote|Tim Mak|November 9, 2014|DAILY BEAST
The beauty of the project comes from the ratio of professional artists, recreational artists, and just creative people.
In the arrangement of hauling gear above described the ratio of the gear is 1:8.44, in the case of tugs Nos.
In ratio of increase the Western cities far surpass the Eastern cities.Montreal 1535-1914, Volume II (of 2)|William Henry Atherton
Find two numbers such that their sum, difference, and the sum of their squares are in the ratio 5 : 3 : 51.A Review of Algebra|Romeyn Henry Rivenburg
The same year the ratio of wealth productivity was as 66 to 37.
In numbers, Valdivia has a larger German population, but the ratio is smaller for Valdivia is the larger place.Journeys and Experiences in Argentina, Paraguay, and Chile|Henry Stephens
British Dictionary definitions for ratio
noun plural -tios
Word Origin for ratio
Word Origin and History for ratio
1630s, "reason, rationale," from Latin ratio "reckoning, numbering, calculation; business affair, procedure," also "reason, reasoning, judgment, understanding," from rat-, past participle stem of reri "to reckon, calculate," also "think" (see reason (n.)). Mathematical sense "relationship between two numbers" is attested from 1650s.
Medicine definitions for ratio
n. pl. ra•tios
Science definitions for ratio
Culture definitions for ratio
An expression of the relative size of two numbers by showing one divided by the other.