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).
Melasma
Pigmentation of the face, most commonly on the malar area (the upper cheek), bridge of nose, forehead, and upper lip, that occurs in half of women during pregnancy. Birth control pills can also cause melasma. However, hormone therapy after…
Read the definitionRandom terms
Show more- CHARGE association A constellation of congenital malformations (birth defects). The name of the condition is an acronym of some…
- Fever, West Nile Fever, West Nile: A febrile disease caused by the West Nile virus that is transmitted from birds to the…
- Swelling of the brain See: Cerebral edema
- Hyaline membrane disease A respiratory disease of the newborn, especially the premature infant, in which a membrane composed of…
- Sac, pericardial See: Pericardial sac
- BLAST Abbreviation for Basic Local Alignment Search Tool, a computer program that identifies homologous genes in…
- Disease, Whitmore's An infectious illness, also called melioidosis, that is most frequent in Southeast Asia and Northern…
- Bergstrom, Sune K (1916-2004) Swedish physician and scientist who was awarded the Nobel prize for physiology or medicine in…
- Tuberculosis, MDR Multidrug-resistant tuberculosis. See: Tuberculosis, antibiotic-resistant
- Essential oil An oil derived from a natural substance, usually either for its healing properties or as a perfume. Some…
- Hypercoagulable state A hypercoagulable state is the medical term for a condition in which there is an abnormally increased…
- PSC (primary sclerosing cholangitis) See: Primary sclerosing cholangitis