/ Dictionary / Index R regulable: Meaning and Definition of Find definitions for: reg•u•la•ble Pronunciation: (reg'yu-lu-bul), [key] — adj. that can be regulated; controllable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. regula regulant Related Content Daily Word Quiz: persevere Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language