ratio
noun
ra·tio
ˈrā-shē-ˌō 
-(ˌ)shō
plural ratios
1
a
: the indicated quotient of two mathematical expressions
b
: the relationship in quantity, amount, or size between two or more things : proportion
2
: the expression of the relative values of gold and silver as determined by a country's currency laws
Examples of ratio in a Sentence
What is the length-to-width ratio?
the ratio of students to teachers in the school is nine to one
Recent Examples on the Web
New Zealand keeps getting further and further away from its peak sheep-to-human ratio.
—
Morgan Haefner, Quartz, 21 May 2024
Read More: Why Waking Up Earlier Isn’t Necessarily Better
Osteoarthritis
Excess weight has a damaging effect on joints and can alter the body's fat-to-muscle ratio, so losing weight may also impact the muscles and skeletal system.
—Alice Park, TIME, 21 May 2024
See all Example Sentences for ratio 
Morgan Haefner, Quartz, 21 May 2024
Read More: Why Waking Up Earlier Isn’t Necessarily Better
Osteoarthritis
Excess weight has a damaging effect on joints and can alter the body's fat-to-muscle ratio, so losing weight may also impact the muscles and skeletal system.
—Alice Park, TIME, 21 May 2024
See all Example Sentences for ratio
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ratio.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Articles Related to ratio
Dictionary Entries Near ratio
Cite this Entry
“Ratio.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ratio. Accessed 31 May. 2024.
Copy CitationKids Definition
ratio
noun
ra·tio
ˈrā-shō
-shē-ˌō
plural ratios
1
: the quotient of two numbers or mathematical expressions
the ratio of 6 to 3 may be expressed as 6:3, ⁶⁄₃, and 2
2
: the relationship in quantity, amount, or size between two or more things
women outnumbered men in the ratio of three to one
Medical Definition
ratio
noun
ra·tio
ˈrā-(ˌ)shō, -shē-ˌō
plural ratios
: the relationship in quantity, amount, or size between two or more things see sex ratio
Love words? Need even more definitions?
Merriam-Webster unabridged
Share