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ratio

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noun, ra·tio \ˈrā-(ˌ)shō, -shē-ˌō\

Simple Definition of ratio

  • : the relationship that exists between the size, number, or amount of two things and that is often represented by two numbers

Source: Merriam-Webster's Learner's Dictionary

Full Definition of ratio

plural ratios

  1. 1 a :  the indicated quotient of two mathematical expressions b :  the relationship in quantity, amount, or size between two or more things :  proportion

  2. 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

  1. What is the length-to-width ratio?

  2. <the ratio of students to teachers in the school is nine to one>



Origin of ratio

Latin, computation, reason — more at reason


First Known Use: 1660

Other Mathematics and Statistics Terms

Rhymes with ratio

acid snow, afterglow, aikido, alpenglow, apropos, art deco, art nouveau, audio, Baguio, Bamako, barrio, bay window, Bergamo, bibelot, Bilbao, black widow, blow-by-blow, body blow, bone marrow, bordereau, Borneo, bow window, buffalo, Buffalo, bungalow, Bushido, buteo, calico, cameo, cachalot, cembalo, centimo, CEO, chassepot, cheerio, Clemenceau, cogito, comedo, comme il faut, counterflow, Cupid's bow, curaçao, Curaçao, curassow, curio, daimyo, danio, Delano, Diderot, do-si-do, domino, dynamo, embryo, entrepôt, Erato, escargot, Eskimo, extrados, fabliau, folio, French window, fricandeau, furbelow, gigolo, golden glow, go-no-go, grass widow, guacharo, hammer throw, hammertoe, haricot, heel-and-toe, hetero, high and low, HMO, Holy Joe, horror show, Idaho, in a row, indigo, in escrow, in the know, Jericho, kakapo, latigo, little toe, long-ago, Longfellow, Maceió, Maginot, Manchukuo, medico, Mexico, mistletoe, modulo, Monaco, Navajo, NCO, nuncio, oleo, olio, on tiptoe, Oreo, overflow, overgrow, overthrow, ovolo, Pamlico, Papago, paseo, picaro, piccolo, Pierrot, polio, pomelo, pompano, portico, PPO, Prospero, proximo, quid pro quo, radio, raree-show, Richard Roe, Rochambeau, rococo, rodeo, Romeo, rose window, round window, saddlebow, Sapporo, sapsago, Scapa Flow, Scipio, Scorpio, semipro, show window, sloppy joe, so-and-so, SRO, standing O, status quo, stereo, stop-and-go, studio, subito, tallyho, tangelo, Taranto, tic-tac-toe, TKO, to-and-fro, Tokyo, tombolo, touch-and-go, tournedos, tremolo, tuckahoe, tupelo, UFO, ultimo, undergo, undertow, Veneto, vertigo, vibrio, video, virago, vireo, Zhangjiakou, zydeco


RATIO Defined for Kids

ratio

play
noun ra·tio \ˈrā-shō, -shē-ˌō\

Definition of ratio for Students

plural ratios

  1. :  the relationship in number or quantity between two or more things <the ratio of teachers to students>




Medical Dictionary

ratio

play
noun ra·tio \ˈrā-(ˌ)shō, -shē-ˌō\

Medical Definition of ratio

plural ratios

  1. :  the relationship in quantity, amount, or size between two or more things—see sex ratio





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