A video thumbnail is a small picture or image that represents what a video is about. It helps people get an idea of what the video is showcasing before they click on it to watch. Full definition
New music and video players are more attractive, with better uses of video thumbnails and album art. (pcmag.com)
«Converting PDF Law Firm Newsletters to Flash Main The Importance of a Compelling Video Thumbnail to Accompany Your Online Lawyer Video» (lawyercasting.com)
We fixed an issue resulting in video thumbnails sometimes not being shown in WhatsApp — videos received from this build onwards will display a thumbnail. (blogs.windows.com)