Definition of intersection
1
: a place or area where two or more things (such as streets) intersect
2
: the act or process of intersecting
3a
: the set of elements common to two or more sets
especially
: the set of points common to two geometric configurations
b
: the operation of finding the intersection of two or more sets
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Merriam-Webster unabridged
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Time Traveler for intersection
The first known use of intersection was in 1559
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