aspect ratio

American  

[as-pekt rey-shoh, rey--shee-oh] / ˈæs pɛkt ˌreɪ ʃoʊ, ˌreɪ ˌʃi oʊ /

noun

1. Aeronautics. the ratio of the span of an airfoil to its mean chord.

2. Digital Technology, Television. the ratio of the width of an image to its height, usually a standard ratio such as 16 to 9 or 4 to 3.

3. Naval Architecture. the ratio of the height of a rudder to its fore-and-aft length.

4. Rocketry.

   1. Also called fineness ratio.  Also called slenderness ratio.  the ratio of the mean diameter of the body of a rocket or missile to its length.

   2. the ratio of the length of the combustion chamber of a rocket motor to its diameter.

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aspect ratio British  

noun

1. the ratio of width to height of the picture on a television or cinema screen

2. aeronautics the ratio of the span of a wing to its mean chord

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Etymology

Origin of aspect ratio

First recorded in 1905–10

Example Sentences

Aspect ratio changes and invigorating triptychs recall a slew of spaghetti Westerns.

From New York Times • Mar. 24, 2023

Aspect ratio is arguably more important than video resolution when it comes to video doorbells.

From The Verge • Mar. 1, 2022

Aspect ratio aside, the screen on this device is quite good.

From The Verge • Sep. 27, 2021

Aspect ratio aside, the 713’s touch display is gorgeous, delivering a sharp picture and vibrant, accurate colors.

From The Verge • Aug. 6, 2020