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).
Osteopetrosis
Thickening of the bones which become abnormally dense due an inherited defect in bone resorption -- the process in which old bone is broken down and removed so that new bone can be added to the skeleton. Osteoclasts are the cells…
Read the definitionRandom terms
Show more- Amnion A thin membrane surrounding the fetus during pregnancy. The amnion is the inner of the two fetal membranes…
- Glisson's capsule The capsule of the liver. A layer of connective tissue surrounding the liver and ensheathing the hepatic…
- Assistive device Any device that is designed, made, or adapted to assist a person perform a particular task. For examples…
- Cryoprotectant A chemical component of a freezing solution used in cryopreservation (the process of cooling and storing…
- Fear of men An abnormal and persistent fear of men. Sufferers experience anxiety even though they realize they may face…
- Capsaicin A component of certain plants, including cayenne and red pepper, used topically to relieve minor arthritis…
- Human reproductive cloning HTLV. A retrovirus that causes adult T-cell leukemia. HTLV is endemic (constantly present) in southern Japan…
- Hyperthyroid Excess of thyroid hormone resulting from an overactive thyroid gland (or taking too much thyroid hormone)…
- Underventilation See: Hypoventilation
- Infarct An area of tissue death due to a local lack of oxygen. For example, in a myocardial infarction there is death…
- Nipple absence Medically called athelia, this is a rare condition but it is common in certain conditions. Athelia tends to…
- Dihydrotestosterone A byproduct of the male hormone testosterone. Dihydrotestosterone (DHT) is considered to be the essential…