Home›Browse›Y›yeast infectionyeast infectionOur editors are putting together more complete content — check back in about 20 minutesyeast infectionyeast infection — nounnoun1. a fungal infection caused by an overgrowth of Candida1.nounDefinitiona fungal infection caused by an overgrowth of CandidaExampleShe went to the doctor because she had a yeast infection.