/ Dictionary / Index F fusible metal: Meaning and Definition of Find definitions for: fu'sible met'al Pronunciation: [key] any of various alloys, as of bismuth, lead, and tin, that melt at temperatures as low as 160°F (70°C), making them useful in various safety devices. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fusible fusiform Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language