Definition of "detrain"

detrain

/ˈdi.tɹeɪn/

verb
third-person singular simple present detrains, present participle detraining, simple past and past participle detrained
1. (rail transport, intransitive) To exit from a train; to disembark
  Quotations
  Here my party detrained, but the train proceeded to Souk Ahras via Duvivier.
  1944 January and February, Major J. C. F. Lloyd Williamson, “Ambulance Trains in Algeria and Tunisia”, in Railway Magazine, page 6
2. (rail transport, transitive) to remove a passenger or passengers from a train; to evacuate passengers from a train.
  Quotations
  The trouble occurred on the 10.5 a.m. Paddington-Bristol trip, when gangers' tools left on the track near Swindon punctured one of the unit's fuel tanks and the passengers had to be detrained to wait for the down "Merchant Venturer".
  1961 February, “Motive Power Miscellany: Western Region”, in Trains Illustrated, page 122
3. (of an athlete) to reduce one's training, particularly during the offseason, in preparation for a cycle of retraining.
4. (meteorology) to transfer air from an organized air current to the surrounding atmosphere - cf. entrain