telethon

(telə t̸hän′)

noun

a campaign, as on a lengthy telecast, seeking support for a cause, as by pledged donations made by telephone

Origin: tele(vision) + (mara)thon

See telethon in American Heritage Dictionary 4

noun
A lengthy television program to raise funds for a charity.

Origin:

Origin: tele-

Origin: + (mara)thon

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