A widescreen aspect ratio for video. 16:9 is the ratio of the width to the height of the visible area of the video frame, also called the picture aspect ratio.
See anamorphic widescreen. See also HDTV. Also see Webopedia’s “Did You Know…All About Digital TV . DTV and HDTV“.
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.