A function in Web browsers and other applications that searches for a dictionary definition of any word in an article when the users place the cursor on the word and clicks the right mouse button. More advanced lookups enable a phrase to be highlighted instead of only a single word. See
virtual hypertext,
right click and
dictionary lookup.
Look Up "Jeopardize"
Right clicking the word "jeopardize" in this article retrieves its definition. This example came from the Vivaldi browser.