The definition of a preconception is a notion, opinion or idea that you have formed before going into something, sometimes based on bias or prejudice.
(noun)An example of a preconception is when you make up your mind in advance what someone is going to be like without knowing the person.
See preconception in Webster's New World College Dictionary
noun
Origin: ML preconceptio
See preconception in American Heritage Dictionary 4
noun
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