MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Heart, left
The heart is composed functionally of two hearts - the right heart and the left heart. The left heart consists of the left atrium which receives oxygenated blood from the lung and the left ventricle which pumps it out to the body under…
Read the definitionRandom terms
Show more- Ventilation The exchange of air between the lungs and the atmosphere so that oxygen can be exchanged for carbon dioxide…
- Innervate To supply with nerves. It is a little known fact that the cornea is the most densely innervated tissue in the…
- Urticaria Another name for the hives. Raised, itchy areas of skin that are usually a sign of an allergic reaction…
- Psoriasis Psoriasis: A reddish, scaly rash often located over the surfaces of the elbows, knees, scalp, and around or…
- Incompatibility, Rh The state of mother and fetus having different Rh blood group types so that their Rh types are…
- Dysphoria Anxiety
- Hypovolemic Referring to hypovolemia, an abnormal decrease in blood volume. As, for example, hypovolemic shock
- Sprain, metatarsophalangeal joint See: Metatarsophalangeal joint sprain
- Tick-borne rickettsiosis, north Asian One of the tick-borne rickettsial diseases of the eastern hemisphere, similar to Rocky Mountain spotted…
- Gallus gallus The Red Jungle Fowl, the ancestor of domestic chickens
- Upper respiratory infection An infection of the upper part of the respiratory system which is above the lungs. An upper respiratory…
- Nervous system, human The sum total of the tissues that record and distribute information within a person, and does so by…