pop-up

  1. Adjective.  coming into view suddenly from a concealed position.
  2. Adjective.  opening out to form a three-dimensional structure when the page of a book is opened.
  3. Noun.  Something that pops up.
  4. Noun.  A pop-up advertisement; an advertisement that is triggered to appear on a computer screen when an internet user accesses a particular web page.
  5. Noun.  (baseball) A ball that has been hit to a considerable height above the infield or the shallow outfield; a pop fly.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.