/ Dictionary / Index A adjustable-rate mortgage: Meaning and Definition of Find definitions for: ad•just'a•ble-rate mort'gage Pronunciation: (u-jus'tu-bul-rāt"), [key] a mortgage that provides for periodic changes in the interest rate, based on changing market condtions. Abbr.: ARM Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. adjustable-pitch adjustable spanner Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language