I. ə̇n.ˈtrān, en.- transitive verb
Etymology: Middle French entrainer, from en- en- (I) + trainer to draw, drag — more at train
1.
a. : to draw away with or after oneself
the tribes they had entrained with themselves on their long migrations to the West — K.H.Menges
b. : to bring on as a result : result in
change embodied in … inventions … entrains change in the ways of applying human effort — G.B.Hurff
entrained only my own ruin, my own bankruptcy — Henry Miller
2. : to carry along or over especially mechanically (as fine drops of liquid in vapors during distillation or evaporation)
3. : to collect and transport (a substance) by the flow of a fluid moving at high velocity
air is entrained by a stream of water in a jet pump
4. : to incorporate (air in the form of bubbles) into concrete (as for making resistant to the action of frost or to the effects of chemicals used for the removal of ice and snow)
II. verb
Etymology: en- (I) + train (n.)
transitive verb
: to put aboard a railroad train
took the mail to the station to be entrained
intransitive verb
: to board a railroad train
immediately after the game the team entrained for New York
III. transitive verb
: to determine or modify the phase or period of
circadian rhythms entrained by a light cycle