Medical Dictionary

Health Glossary

Demystifying medical language. Browse or search for clear, human-centered explanations of common medical terms.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A specialized hospital unit for patients who are critically ill and require close monitoring and advanced medical support. Patients in…

A state of poor physical or mental health. Illness may be: Related:

The body’s defense system against infections and harmful substances. The immune system helps recognize and fight disease-causing organisms. Related:

The body’s defense system against infections and harmful substances. It includes: Related:

The body’s ability to protect itself against infections and disease. Immunity may develop through: A weakened immune system can increase…

The time between exposure to an infection and the appearance of symptoms. Different diseases have different incubation periods. Related:

A condition where harmful microorganisms enter the body and multiply. Infections may be caused by: Symptoms vary depending on the…

Inflammation is the body’s natural response to injury, infection, or irritation. It helps the immune system repair damaged tissues and…

A contagious viral infection that mainly affects the respiratory system. Commonly called “the flu.” It may cause: Related:

A hormone that helps move glucose from the blood into cells for energy. Problems with insulin are central to diabetes.…

Long tube-like organs in the digestive system that help absorb nutrients and remove waste. The intestines include: Related:

A condition where the body does not have enough iron. Iron is important for: Common effects include: Related:

Clear Health Insights in Your Inbox