From Longman Dictionary of Contemporary Englishwhiteboardwhite‧board /ˈwaɪtbɔːd $ -bɔːrd/ noun [countable] SEa large board with a white smooth surface that you can write on, used, for example, in rooms where classes are taught → blackboard
Examples from the Corpus
whiteboard• Hughes, with sandy hair half way down his back, grabs a marker and scribbles the agenda on a whiteboard.• Our journeys on the whiteboard suggest that it holds the key to our concepts of beauty.• Projection on to the whiteboard is made directly, using the white surface as the screen.From Longman Business Dictionarywhiteboardwhite‧board /ˈwaɪtbɔːd-bɔːrd/ noun [countable]1a large white board on which you write information that you are presenting to a group of people2computing an area on a computer screen that looks like a white board, and that can be used by several people at different computers to exchange information, for example in a teleconference → compare flipchart 