/ Dictionary / Index N nyctophobia: Meaning and Definition of Find definitions for: nyc•to•pho•bi•a Pronunciation: (nik"tu-fō'bē-u), [key] — n. Psychiatry. an abnormal fear of night or darkness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nyctophobia (Thesaurus) nycto- Nydia Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language