/ Dictionary / Index C concretionary: Meaning and Definition of Find definitions for: con•cre•tion•ar•y Pronunciation: (kon-krē'shu-ner"ē, kong-), [key] — adj. formed by concretion; consisting of concreted matter or masses. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. concretion concretism Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language