Breadcrumb Home > Dictionary > Index A actinium emanation: Meaning and Definition of Find definitions for: actin'ium emana"tion Pronunciation: [key] — Chem. Chem. actinon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. actinium actinium series ✖ Related Content Daily Word Quiz: derogate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language