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).
Right ventricle
The lower right chamber of the heart that receives deoxygenated blood from the right atrium and pumps it under low pressure into the lungs via the pulmonary artery. The tricuspid valve is located between the right atrium and right…
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Show more- Second wave A phenomenon of infections that can develop during a pandemic. The disease infects one group of people first…
- Lactic acidosis Acidosis (too much acid in the body) due to the buildup of lactic acid in the body. Lactic acidois occurs…
- Muscle, central core disease of One of the muscles that relax the zonules to enable the lens to change shape for focusing. The zonules are…
- Renal calculi Kidney stones. A common cause of blood in the urine and pain in the abdomen, flank, or groin. Occurs in 1 in…
- Bovine genome The genome of the cow (Bos taurus). The bovine genome is similar in size to the genomes of humans and other…
- Yolk stalk A narrow tube present in the early embryo that connects the midgut of the embryo to the yolk sac outside the…
- Albumin The main protein in human blood and the key to the regulation of the osmotic pressure of blood. Chemically…
- Meatus An opening or passageway. For example, the female urethral meatus. The urethra is the transport tube from the…
- Rheumatoid factor Rheumatoid factor: Rheumatoid factor is an antibody that is measurable in the blood. It is commonly used as a…
- Pain, false labor The pain associated with intermittent non-productive muscular contractions of the womb (uterus) during…
- Proxy, health care A health care proxy is one form of advance medical directive. Advance medical directives pertain to treatment…
- Cranial nerve I The first nerve to emerge from or enter the skull (the cranium). (There are twelve cranial nerves.) The first…