idolum

noun
ido·lum | \īˈdōləm\
plural idola\-lə \

Definition of idolum 

1 : eidolon

2 : a form of false thinking : fallacy, idol sense 5 specifically : one of the four varieties of fallacy distinguished by Francis Bacon in his Novum Organum (1620) — compare idols of the cave, idols of the forum, idols of the theater, idols of the tribe

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History and Etymology for idolum

in sense 1, from Latin & Greek; Latin, phantom, image, from Greek eidōlon phantom, image, idol; in sense 2, New Latin, from Late Latin, idol, from Greek eidōlon

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to reject or criticize sharply

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