/ Dictionary / Index S sea oats: Meaning and Definition of Find definitions for: sea' oats" Pronunciation: [key] a tall grass, Uniola paniculata, of coastal areas of southeastern North America, having as its inflorescence a densely crowded panicle, used to control sand erosion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sea nettle Sea of Tranquillity Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language