Myriad: A great number, a very large number, a huge number of something. There are, for example, myriad ways in which syphilis can present; it is the great imitator. "Myriad" is a Greek word for 10,000 (ten thousand). QUESTION What causes tooth decay? See Answer From Healthy Resources 10 Rheumatoid Arthritis SymptomsWhat Is Exocrine Pancreatic Insufficiency?Common Health Conditions Among Minorities Featured Centers Good and Bad Foods for PsoriasisVideo: Getting Personal on Life With MS Health Solutions From Our Sponsors Shot-Free MS Treatment Your Child and COVID-19