/ Dictionary / Index A activation analysis: Meaning and Definition of Find definitions for: activa'tion anal"ysis Pronunciation: [key] — Chem. Chem. a method for the qualitative and quantitative determination of trace amounts of various elements by measuring the characteristic radioactive decay induced by neutron bombardment. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. activated sludge activator Related Content Daily Word Quiz: crockery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language