Glossary of Terms
Acronyms are found everywhere. Find common acronyms listed in our own documents and classes in the table below. See something missing? Recommend a definition we should list here by contacting us.
|
Acronym |
Definition |
|---|---|
|
Accessibility |
Accessibility refers to the design and delivery of products, devices and services so that all people can use them regardless of ability. Ease of use should be equivalent for all people. |
|
ADHD |
Acronym for Attention Deficit Hyperactivity Disorder. |
|
Alternative Text (Alt text) |
Text that is attached to a figure or image that is read by a screen reader. This describes the photo to the user. |
|
Audio Description |
Also referred to as descriptive audio or described video, audio description is an additional audio track that describes visual information audibly. |
|
Color Contrast Ratio |
The visual difference between two colors. To follow WCAG, text and background need to have a contrast ratio of at least 4.5:1 for normal sized text (below 18.66px) and 3:1 for large text (above 18.66px) and meaningful elements such as informative graphics. Learn more at WebAIM’s Color Contrast Checker web app. |
|
POUR |
The WCAG Principles: Perceivable, Operable, Understandable, and Robust. |
|
Screen Reader |
A device commonly used by people who are blind or visually impaired. A screen reader uses text and code to verbally describe what is on the computer screen. |
|
SRT |
SRT files, or SubRip Subtitle files, are a common file format used to create subtitles. |
|
WCAG |
Web Content Accessibility Guidelines. |
There’s more to learn
Learn more about WCAG and the definitions above by visiting W3C Web Accessibility Initiative’s website and discover more accessibility focused glossaries such as the U.S. Department of Health and Human Services Digital Accessibility Term Definitions.
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