/ Dictionary / Index N Noachian: Meaning and Definition of Find definitions for: No•a•chi•an Pronunciation: (nō-ā'kē-un), [key] — adj. of or pertaining to the patriarch Noah or his time. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: noachian (Thesaurus) no-account Noah Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language