/ Dictionary / Index S summer complaint: Meaning and Definition of Find definitions for: sum'mer complaint" Pronunciation: [key] an acute condition of diarrhea, occurring during the hot summer months chiefly in infants and children, caused by bacterial contamination of food and associated with poor hygiene. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. summer camp summer cypress 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