tel‧e‧thon /ˈteləθɒn, ˈtelɪθɒn $ -θɑːn/
noun [countable][
Date: 1900-2000;
Origin: television + -thon (as in marathon)]
a long television show in which famous people provide entertainment and ask people watching to give money to help people
[TahlilGaran] Dictionary of Contemporary English ▲