From Longman Dictionary of Contemporary EnglishWAPWAP /wæp/ noun [uncountable] (wireless application protocol) a system that uses radio waves to allow electronic equipment that is not physically attached to a computer, for example a mobile phone, to use the InternetFrom Longman Business DictionaryWAPWAP /wæp/ noun [uncountable]TELECOMMUNICATIONS (wireless application protocol) a system for sending and receiving messages and connecting to the Internet using radio waves. WAP makes it possible for electronic equipment that is not physically attached to a computer, for example a mobile phone, to use the Interneta WAP phone