Definition of tooltip in English:

tooltip

noun

Computing
  • A message that appears when a cursor is positioned over an icon, image, hyperlink, or other element in a graphical user interface.

    • ‘You should add an empty title attribute too, to suppress the tooltip in visual browsers.’
    • ‘On lines 48-64, we create a status line where the menu tool tips will be displayed.’
    • ‘You can float the mouse over the button and a tool tip will pop up with the command name.’
    • ‘If something isn't immediately obvious, putting the cursor over it will bring up a tool tip telling you all relevant information.’
    • ‘He also mentions that visual browsers can display it as a tooltip or on the status line.’

Pronunciation:

tooltip

/ˈto͞oltip/