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).
Rhinitis, allergic, perennial
Allergic rhinitis (hayfever) that occurs throughout the year
Read the definitionRandom terms
Show more- Occupational medicine The field of medicine encompassing occupational disease, diseases due to factors in people's occupations. For…
- Stress exercise thallium scan Stress exercise thallium scan: A method of examining the heart to obtain information about the blood supply…
- Histocompatible Literally, tissue compatible. If a donor and recipient are histocompatible, a transplant is expected to be…
- Goiter Enlargement of the thyroid gland. A goiter is not cancerous. It is simply a thyroid gland that is bigger than…
- Retinoid Retinol is vitamin A. Carotene compounds (found, for example, in egg yolk, butter and cream) are gradually…
- Syndrome, MASS A heritable disorder of connective tissue characterized by involvement of the mitral valve, aorta, skeleton…
- Pathology The study of disease. Pathology has been defined as 'that branch of medicine which treats of the essential…
- Omentectomy Surgery to remove part or all of the omentum, a fold of the peritoneum (the thin tissue lining the abdomen)…
- Tubal pregnancy A pregnancy that is not in the usual place within the uterus but is located in the Fallopian tube. Tubal…
- Aura A premonition. There is often an aura before a migraine or a grand mal seizure. The aura, a symptom of brain…
- C-section Short for Caesarian section, a procedure in which a baby, rather than being born vaginally, is surgically…
- Hypoplastic left heart syndrome A form of congenital heart disease in which the whole left half of the heart (including the aorta , aortic…