Breadcrumb Home > Dictionary > Index M mutagenic: Meaning and Definition of Find definitions for: mu•ta•gen•ic Pronunciation: (my"tu-jen'ik), [key] — adj. Genetics. capable of inducing mutation or increasing its rate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mutagenic (Thesaurus) mutagenesis mutant ✖ Related Content Daily Word Quiz: hortatory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language