parallel axiom(redirected from Parallel postulate)
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Related to Parallel postulate: Euclid's fifth axiom
parallel axiom[¦par·ə‚lel ′ak·sē·əm]
The axiom of an affine plane which states that if p and L are a point and line in the plane such that p is not on L, then there exists exactly one line that passes through p and does not intersect L.