MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Cavernous hemangioma
A type of hemangioma composed of blood-filled 'lakes' and channels. It is typically raised and red or purplish. A cavernous hemangioma may diminish in size following trauma, bleeding or ulceration but it rarely disappears on its own. Small…
Read the definitionRandom terms
Show more- Cancer, prostatic Cancer of the gland (prostate) that produces some of the components of semen fluid. The second leading cause…
- RFID Radio frequency identification, a system for remotely storing and retrieving data. RFID tags can serve to…
- Rigour See: Rigor
- Rheumatology A subspecialty of internal medicine that involves the non-surgical evaluation and treatment of the rheumatic…
- Nares The nostrils or nasal passages. Nares is the Latin plural of naris, meaning nostril. Nares shares the same…
- Pityriasis rosea Peutz-Jeghers syndrome.
- T-suppressor cell A type of immune cells, also called T8 cells, these cells close down the immune response after it has…
- BMRs (biological response modifiers) Substances that stimulate the body's response to infection and disease. The body naturally produces small…
- Flat affect A severe reduction in emotional expressiveness. People with depression and schizophrenia often show flat…
- Macrocytic 1. Any abnormally large cell. The opposite of macrocytic is microcytic (an abnormally small cell). 2. An…
- Fear of pain An abnormal and persistent fear of pain. The fear is excessive, beyond that which is expected under the…
- Did not attend (DNA) In the UK, DNA is an abbreviation for 'did not attend.' (In the US, the term used for a patient who missed an…