MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Regurgitation
A backward flowing. For example, of food. Or the sloshing of blood back into the heart (or between chambers of the heart) when a heart valve is incompetent and does not close effectively
Read the definitionRandom terms
Show more- Kernig sign A clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal…
- PCL (posterior cruciate ligament) The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- Vena cava, superior A large vein that receives blood from the head, neck, upper extremities, and thorax and empties it into the…
- Surfactant A fluid secreted by the cells of the alveoli (the tiny air sacs in the lungs) that serves to reduce the…
- Cyst, thyrolingual See: Thyroglossal cyst
- Fear of nudity An abnormal and persistent fear of nudity is called gymnophobia. Sufferers of this phobia experience undue…
- Hypoventilation The state in which a reduced amount of air enters the alveoli in the lungs, resulting in decreased levels of…
- Vein, internal jugular The deeper of the two jugular veins in the neck that drain blood from the head, brain, face and neck and…
- Anterior cruciate ligament A ligament in the knee that crosses from the underside of the femur (the thigh bone) to the top of the tibia…
- Incurable Not amenable to a cure. Incapable of being cured, healed and made well again. Many pancreatic cancers are…
- Fear of socializing Ial phobia): Excessive fear of embarrassment in social situations that is extremely intrusive and can have…
- Somnambulist Sleep talking. Talking in one's sleep is considered a normal phenomenon that is of no medical or…