An Acronym for Wireless Markup Language.

WML is the equivilant to Wireless Products as what HTML is to a web browser client.

It is based on XML, or rather it is an XML application. If you're going from HTML to WML, with no prior knowledge of XML, chances are you'll find WML very strict. Just like HTML and XML, WML is read and interpreted by a browser built into the WAP device. For WAP devices, the browser is commonly called a micro browser, indicating that its capabilities are somewhat limited These capabilities are of course also limited to the capabilities of the WAP device in which it lives.

Brilliant SDK for WML: http://developer.openwave.com/dvl/tools_and_sdk/openwave_mobile_sdk/index.htm

Other interesting websites:

1. http://www.devguru.com/Technologies/wml/quickref/wml_hierarchy.html
2. http://www.w3schools.com/wap/wml_reference.asp
3. http://www.w3schools.com/wap/default.asp

See also:

WAP, XML and XLS?.