/ Dictionary / Index S solar plexus: Meaning and Definition of Find definitions for: so'lar plex'us Pronunciation: [key] Also calleda network of nerves situated at the upper part of the abdomen, behind the stomach and in front of the aorta. a point on the stomach wall, just below the sternum, where a blow will affect this nerve center. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. solar panel solar pond 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