technology

mechanism (opens in a new tab) for encoding instructions to be rendered, played or executed by user agents (opens in a new tab)

Note 1: As used in these guidelines "web technology" and the word "technology" (when used alone) both refer to web content technologies.

Note 2: Web content technologies may include markup languages, data formats, or programming languages that authors may use alone or in combination to create end-user experiences that range from static web pages to synchronized media presentations to dynamic Web applications.

Example: Some common examples of web content technologies include HTML, CSS, SVG, PNG, PDF, Flash, and JavaScript.

Source: WCAG 2.2 definition of “technology” (opens in a new tab) (W3C)