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).
Mosaic
An individual or tissue containing two or more types of genetically different cells. All females are mosaics because of X-chromosome inactivation (lyonization). Mosaic patterns can affect how genetic disorders are expressed. For example…
Read the definitionRandom terms
Show more- Myometrium The muscular outer layer of the uterus.
- Otosclerosis The abnormal formation of new bone in the middle ear that gradually immobilizes the stapes (stirrup bone) and…
- Morbilli Another name for measles, an acute highly contagious viral disease with fever, runny nose, cough, red eyes…
- Protease An enzyme that can split a protein into peptides (from which the protein was originally created).
- Berry aneurysm A berry aneurysm is a small outpouching (an aneurysm) that looks like a berry and classically occurs at the…
- Kidney stones, cystine Cystine kidney stones are due to cystinuria, an inherited (genetic) disorder of the transport of an amino…
- Blood clots, estrogen-associated >esterified estrogens >esterified estrogens and methyltestosterone >estradiol >estrogens (conjugated) and…
- Prodrug A precursor (forerunner) of a drug. A prodrug must undergo chemical conversion by metabolic processes before…
- Blastocystis hominis The parasitic organism that causes blastocystosis. See Blastocystosis
- Keshan disease Condition caused by deficiency of the essential mineral selenium. Keshan disease is a potentially fatal form…
- Pharmacy A location where prescription drugs are sold. A pharmacy is, by law, constantly supervised by a licensed…
- Brachial paralysis See: Brachial plexus palsy