/ Dictionary / Index E euchromosome: Meaning and Definition of Find definitions for: eu•chro•mo•some Pronunciation: (y-krō'mu-sōm"), [key] — n. Genetics. autosome. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. euchromatin Eucken Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language