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1. A series of connected railroad cars pulled or pushed by one or more locomotives.
2. A long line of moving people, animals, or vehicles.
3. The personnel, vehicles, and equipment following and providing supplies and services to a combat unit.
4. A part of a gown that trails behind the wearer.
5. A staff of people following in attendance; a retinue.
a. An orderly succession of related events or thoughts; a sequence. See Synonyms at series.
b. A series of consequences wrought by an event; aftermath.
7. A set of linked mechanical parts: a train of gears.
8. A string of gunpowder that acts as a fuse for exploding a charge.
v. trained, train·ing, trains
1. To coach in or accustom to a mode of behavior or performance.
2. To make proficient with specialized instruction and practice. See Synonyms at teach.
3. To prepare physically, as with a regimen: train athletes for track-and-field competition.
4. To cause (a plant or one's hair) to take a desired course or shape, as by manipulating.
5. To point or direct (a gun or camera, for example) at something. See Synonyms at aim.
6. To let drag behind; trail.
1. To give or undergo a course of training: trained daily for the marathon.
2. To travel by railroad train.

[Middle English, trailing part of a gown, from Old French, from trainer, to drag, from Vulgar Latin *tragīnāre, from *tragere, to pull, back-formation from tractus, past participle of Latin trahere.]

train′a·bil′i·ty n.
train′a·ble adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
In the end, Chang told her fans that she is excited because she is trainable, teachable and loves receiving constructive criticism.
He will do anything for treats and is easily trainable. He also takes a treat very gently.
However, the horse must not have any medical issues and must be trainable with a good temperament and no vices.
Here, depending on the degree of the pupils' disabilities, they are categorised into four classes: educable, trainable, profound, and severe.
'The realisation that these skills are actually trainable with video games is important because they are predictors of emotional well-being and health throughout life, and can be practiced anytime with or without video games,' said lead author Tammi Kral, graduate student at the University of Wisconsin-Madison in the US.
Resilience is essential for surviving and thriving in a world full of troubles and tragedies, and it is completely trainable and recoverable--when we know how.
Urging investors in Qatar to take advantage of the investor-friendly regime in Bangladesh, Alam said,"The country has one of the most liberal investment policies among the South Asian countries." The economy, which is among the top 10 fastest growing one in the world, holds the comparative advantage in terms of market access, trainable and competitive youth workforce and competitive wages," the minister said while addressing a seminar in Doha.
I quickly learned that I had to remain open-minded and trainable. Finally, I learned to appreciate the need to be reliable and dependable, a quality that can be learned by anyone.
"They learn quickly and are highly trainable. But it's a different kind of training than say, a Lab.
She said, "Nancy, I kept using the word 'trainable' to describe a trait I look for in a puppy, and every time I said it, the breeder would respond that her dogs are very 'biddable.' At first, I wasn't sure what word she was using; I asked her to repeat it.
Countries break through into transformative development by acquiring technological capabilities that generate 'increasing returns', which means building a manufacturing base - beginning with the main resource to hand, which is a trainable labour force.
Beagles have certain character traits that can make training more difficult, however they are trainable and Labradors are boisterous but very trainable.