Top Definition
People who, for personal reasons, refuse to eat organisms with 1 (or more) distinct nucleus. Their diets are restricted to bacteria and archaea, and have significantly reduced life expectancies.
Prokarytarian: Do you have anything prokarytarian on the menu?
Waiter: Um, a salad?
Prok.: No, plants have nuclei.
by Adam(randomstringofnumbers) March 07, 2009
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