/ Dictionary / Index S surficial: Meaning and Definition of Find definitions for: sur•fi•cial Pronunciation: (sur-fish'ul), [key] — adj. of or pertaining to a surface, esp. the land surface: a surficial geologic deposit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: surficial (Thesaurus) surffish surfing Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language