/ Dictionary / Index S suboceanic: Meaning and Definition of Find definitions for: sub•o•ce•an•ic Pronunciation: (sub"ō-shē-an'ik), [key] — adj. occurring or existing below the floor of the ocean: suboceanic oil. of, pertaining to, or on the floor of the ocean: suboceanic plants. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: suboceanic (Thesaurus) suboccipital suboptimal Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language