/ Dictionary / Index T trainable: Meaning and Definition of Find definitions for: train•a•ble Pronunciation: (trā'nu-bul), [key] — adj. capable of being trained. of or pertaining to moderately retarded individuals who may achieve some self-sufficiency, as in personal care. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. train trainband Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language