(rail transport, intransitive) To exit from a train; to disembark / (rail transport, transitive) to remove a passenger or passengers from a train; to evacuate passengers from a train.

Third-person singular simple present indicative form of detrain

present participle of detrain

simple past tense and past participle of detrain

The act of detraining. / (meteorology) The diffusion of air from an organized current into the general atmosphere.

plural of detrainment