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).
Pregnancy, mask of
Pigmentation of the cheeks of the face (malar area) that occurs in about half of women during pregnancy. The pigmented area darkens with sun exposure. Also referred to as melasma
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Show more- Tenth cranial nerve The tenth cranial nerve, and one of the most important, is the vagus nerve. All twelve of the cranial nerves…
- Proteomics The study of the proteome, the complete set of proteins produced by a species, using the technologies of…
- Cytomegalovirus (CMV) A virus that infects 50-85% of adults in the US by age 40 and is also the virus most frequently transmitted…
- Microscopy, cryo-electron See: Cryo-electron microscopy
- Supernumerary placenta A succenturiate or accessory placenta
- Arachidonate 5-lipoxygenase activating protein ALOX5AP. See: FLAP
- Castleman disease A disorder of lymphoid tissue (lymphadenopathy) with massive overgrowth (hyperplasia) of lymph nodes…
- Alstrom syndrome A progressive genetic disorder characterized by obesity, deafness, and visual problems in childhood and…
- Imbricate Overlapping like shingles or tiles on a roof. The scales on a snake are imbricate. From the Latin imbricatus…
- Span, memory The number of items, usually words or numbers, that a person can retain and recall. Memory span is a test of…
- Lifetime risk The risk of developing a disease during ones lifetime or dying of the disease. The estimated lifetime risk of…
- Count, platelet The calculated number of platelets in a volume of blood, usually expressed as platelets per cubic millimeter…