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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Amenia
Better known as amenorrhea, amenia is the absence or cessation of menstruation. Amenorrhea is conventionally divided into primary and secondary amenorrhea. With primary amenorrhea, menstruation never takes place. It fails to occur at…
Read the definitionRandom terms
Show more- Pulmonary alveolar proteinosis Lung disease characterized by progressive difficulty breathing (dyspnea) and cough due to the accumulation of…
- Disease, Alpers See: Alpers disease
- Disorder, borderline personality A serious mental illness characterized by pervasive instability in moods, interpersonal relationships…
- Alcohol An organic chemical in which one or more hydroxyl (OH) groups are attached to carbon (C) atoms in place of…
- Angiostatin Angiostatin is a piece (a fragment) of a protein, plasminogen, used normally in blood clotting. This fragment…
- Disorders, myeloproliferative Malignant diseases of certain bone marrow cells including those that give rise to the red blood cells, the…
- DHRD Doyne honeycomb retinal dystrophy, an eye disease also known as malattia leventinese. See: Malattia…
- Descending aorta The descending aorta is the part of the aorta, the largest artery in the body, that runs down through the…
- Scleromalacia Degenerative thinning of the sclera, the tough white coat that covers most of the back of the eyeball and…
- Autonomic neuropathy Disease of the nerves affecting mostly the internal organs such as the bladder muscles, the cardiovascular…
- Megabase Unit of length for DNA fragments that is equal to 1 million nucleotides. A megabase (Mb) is roughly equal to…
- Vibrio cholerae One of the Vibrio bacteria, V. cholerae (as the name implies) is the agent of cholera, a devastating and…