throbber
/ˈθrɑbər/
noun
- A graphical element on a computer screen that shows an animation (often a spinning circle or bar) to indicate that a program is busy loading or processing.
- A throbber appeared in the corner of the screen while the file downloaded.
- The app's throbber kept spinning, but nothing happened.
- The page wouldn't load, so I just stared at the throbber for a minute.