[ bur-ther ]
/ ˈbɜr θər /

noun Informal.

a person who claims that the presidency of Barack Obama was unconstitutional, citing a belief that he was not born in the United States, or denying the authenticity of his birth certificate.

Origin of birther

First recorded in 2005–10; birth + -er1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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