noun
a computer program that replaces a screen display on a computer with another, moving, display after a particular length of time, to stop the screen from being damaged
noun
a computer program that replaces a screen display on a computer with another, moving, display after a particular length of time, to stop the screen from being damaged
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005