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).
Hyperthyroid
Excess of thyroid hormone resulting from an overactive thyroid gland (or taking too much thyroid hormone). Symptoms can include increased heart rate, weight loss, depression, and cognitive slowing. Treatment is by medication, the use of…
Read the definitionRandom terms
Show more- FDA recalls Recalls: The recall of a defective or possibly harmful product by the US Food & Drug Administration (the…
- Aneurysm, racemose An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an…
- Stent, medicated See: Coated stent
- Imprinting, psychological A remarkable genetic phenomenon that occurs in animals, and theoretically humans, in the first hours of life…
- Artery, vertebral A key artery located in the back of the neck that carries blood from the heart to the brain
- DT immunization DT (diphtheria and tetanus) vaccine does not protect from pertussis and is usually reserved for individuals…
- Cousin marriage Marriage involving cousins. Everyone carries rare recessive alleles, rare genes that are generally innocuous…
- Zone Diet The Zone diet is a weight loss plan based upon the idea that the right ratio of carbohydrates to proteins and…
- Acclimatization to altitude The main cause of altitude sickness is going too high too fast. Given time, the body can adapt to the…
- Nail dysgenesis and hypodontia A genetic disorder characterized by abnormalities of the nails (nail dysgenesis) and the absence of several…
- Hoarseness Hoarseness: Hoarseness is a term referring to abnormal voice changes. Hoarseness may be manifested as a voice…
- Colorectal surgeon A general surgeon who has had further training and is expert in the diagnosis and treatment of benign and…