Definition of Manichaean
1
: a believer in a syncretistic religious dualism (see dualism sense 3) originating in Persia in the third century a.d. and teaching the release of the spirit from matter through asceticism
2
: a believer in religious or philosophical dualism
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Merriam-Webster unabridged
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Time Traveler for Manichaean
The first known use of Manichaean was in 1556
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