A person who studies the behaviour of earth and all that is on and in it.
by Wambi Brian May 1, 2018
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discriminatory especially on the basis of ones planet of origin.
What is an earthist, except a racist by any other name?
by Tony75 October 2, 2007
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a human with a prejudiced belief that Earth species (specifically humans) are superior to extraterrestrials.
John is an earthist. He only believes in the interests of Earth and all its species, no matter how it affects other species.
by Tony75 October 2, 2007
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earthist remarks are considered by many to be another form of racism.
by Tony75 October 2, 2007
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