having an indicated pole (as the distinction between positive and negative electric charges); "he got the polarity of the battery reversed"; "charges of opposite sign"
the act of imitating the behavior of some situation or some process by means of something suitably analogous (especially for the purpose of study or personnel training)
(computer science) the technique of representing the real world by a computer program; "a simulation should imitate the internal processes and not merely the results of the thing being simulated"
a focussed comparison; bringing together for a careful comparison
the act of hostile groups opposing each other; "the government was not ready for a confrontation with the unions"; "the invaders encountered stiff opposition"
a hostile disagreement face-to-face
discord resulting from a clash of ideas or opinions