Pronunciation: (in"tur-sek'shun),[key] —n. 1. a place where two or more roads meet, esp. when at least one is a major highway; junction.
2. any place of intersection or the act or fact of intersecting.
3. Math. a. Also calledmeet,product. the set of elements that two or more sets have in common. Symbol: ∩
b. the greatest lower bound of two elements in a lattice.