Definition of widget noun from the Oxford Advanced Learner's Dictionary
widget
noun
ˈwɪdʒɪt ˈwɪdʒɪt
1(informal) used to refer to any small device that you do not know the name of2(business) a product that does not exist, used as an example of a typical product when making calculationsCompany A produces two million widgets a year.Calculate the profit per widget.3(computing) a small box on a web page that delivers changing information, such as news items or weather reports, while the rest of the page remains the samewidgets include search boxes, weather guides, pop-up windows and drop-down listsThe widget is a link to the latest news headlines.