Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Enervate(verb) to deprive of nerve, force, strength, or courage; to render feeble or impotent; to make effeminate; to impair the moral powers of. 2  Enervate(adj) weakened; weak; without strength of force.
An intersection is the junction at grade (that is to say, on the same level) of two or more roads either meeting or crossing. An intersection may be three-way (a T junction or Y junction â the latter also known as a fork), four-way (a crossroads), or have five or more arms.
The intersection of A, B, C, and D, for example, is A â© B â© C â© D = A â© (B â© (C â© D)). Intersection is an associative operation; thus, A â© (B â© C) = (A â© B) â© C. Inside a universe U one may define the complement A c of A to be the set of all elements of U not in A.