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).
Diarrhea
Diarrhea: A familiar phenomenon with unusually frequent or unusually liquid bowel movements, excessive watery evacuations of fecal material. The opposite of constipation. The word 'diarrhea' with its odd spelling is a near steal from the…
Read the definitionRandom terms
Show more- Myositis Inflammation of muscle tissue. There are many causes of myositis, including injury, medications, and diseases
- Hemangioma, cavernous A type of hemangioma composed of blood-filled 'lakes' and channels. It is typically raised and red or…
- Therapy, testosterone replacement The practice of giving testosterone to treat conditions in which the testes do not produce enough…
- Hypopigmented Underpigmented.
- Down-regulation See: Downregulation
- Necrosis The death of living cells or tissues. Necrosis can be due, for example, to ischemia (lack of blood flow)…
- Glaucoma treatment (surgery) Surgery can also help fluid escape from the eye and thereby reduce the pressure. However, surgery is now…
- Fetal circulation The blood circulation in the fetus before birth. Before birth, the blood from the heart headed for the lungs…
- Fornix cerebri An arching fibrous band in the brain connecting the two lobes of the cerebrum. (The cerebrum is the largest…
- DX Medical abbreviation for diagnosis. See: dx
- Sequence, intervening An intervening sequence is the part of a gene that is initially transcribed from the DNA into RNA…
- Frontal bone The large bone that makes up the forehead and supplies the upper edge and roof of the orbit (eye socket). The…