Pronunciation: (run'thrOO"),[key] —n. 1. the performing of a sequence of designated actions, esp. as a trial prior to actual performance; rehearsal; practice.
2. a quick outline or review: a run-through of his medical history.
—adj. (of a freight train) made up of cars for a single destination, usually routed so as to avoid congested areas and stopping only for a change of crew.