A hyperlink is a word or phrase which is

connected to a destination page.

    page           page           page    

 text text      text text      text text  

    link         text text      text text 

  text text        link        text text  

 text text       text text      text text 

It may also be connected to a viewer

function such as "Exit" or "BackTrack" or

to a popup definition, such as this one.