/ Dictionary / Index S speculum metal: Meaning and Definition of Find definitions for: spec'ulum met"al Pronunciation: [key] any of several bronze alloys with a high tin content, often containing other materials, as silver, brass, lead, zinc, or arsenic, used for making mirrors and reflectors. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. speculum sped Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language