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From our dictionary:
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1. pertaining to or of the nature of a tangent; being or moving in the direction of a tangent.
2. merely touching; slightly connected: tangential information.
3. divergent or digressive, as from a subject under consideration: tangential remarks.
4. tending to digress or to reply to questions obliquely. Also,tan•gen•tal (tan•jen'tl).
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