- to go aboard a train.
- to put aboard a train.
- (of a substance, as a vapor) to carry along (a dissimilar substance, as drops of liquid) during a given process, as evaporation or distillation.
- (of a liquid) to trap (bubbles).
- to transfer (air) into an organized air current from the surrounding atmosphere (opposed to detrain).
- to board or put aboard a train
- (of a liquid or gas) to carry along (drops of liquid, bubbles, etc), as in certain distillations
- to disperse (air bubbles) through concrete in order to increase its resistance to frost
- to adjust (an internal rhythm of an organism) so that it synchronizes with an external cycle, such as that of light and dark
