telethon /ˈtɛləˌθɑːn/ noun plural telethons
plural telethons
Learner's definition of TELETHON
[count]
: a long television program that tries to raise money for a charity by asking people to call during the program and make a donation（为募捐而播放的）长时间的电视节目，马拉松式的电视节目