entrain

¹

[ en-treyn ]

verb (used without object)

1. to go aboard a train.

verb (used with object)

1. to put aboard a train.

entrain

²

[ en-treyn ]

verb (used with object)

1. Chemistry. (of a substance, as a vapor) to carry along (a dissimilar substance, as drops of liquid) during a given process, as evaporation or distillation.
2. (of a liquid) to trap (bubbles).
3. Meteorology. to transfer (air) into an organized air current from the surrounding atmosphere ( detrain ).

entrain

¹

/ ɪnˈtreɪn /

verb

1. (of a liquid or gas) to carry along (drops of liquid, bubbles, etc), as in certain distillations
2. to disperse (air bubbles) through concrete in order to increase its resistance to frost
3. zoology to adjust (an internal rhythm of an organism) so that it synchronizes with an external cycle, such as that of light and dark

entrain

²

/ ɪnˈtreɪn /

verb

1. to board or put aboard a train

Derived Forms

• enˈtrainment, noun
• enˈtrainment, noun

Other Words From

• en·trainer noun

Word History and Origins

Origin of entrain¹

First recorded in 1880–85; en- ¹ + train

Origin of entrain²

First recorded in 1560–70; from Middle French entrainer, equivalent to en- verb prefix + trainer “to drag, trail”; en- ¹, train

Example Sentences

It suggests that the increased gamma activity of ketamine could entrain gamma activity among neurons expressing a peptide called VIP.

From Science Daily

Partial melting of the mantle releases CO2 that becomes entrained in hydrothermal fluid, reacts with the mantle closer to the seafloor, and is captured there.

From Science Daily

The colossus is presently entrained in the Antarctic Circumpolar Current, the great sweep of water that circles the continent in a clockwise direction.

From BBC

“Language entrains us into these systems, one set of categories versus another.”

From Scientific American

"The cilia at a border region take the role as a pacemaker which entrain other cilia one after another," Hickey summarizes the findings.

From Science Daily

Related Words

• catch
• climb on
• enter
• get on
• hop on