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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
MSG
Monosodium glutamate, a sodium salt of the amino acid glutamic acid that enhances the flavor of certain foods. Originally isolated from seaweed, MSG is now made by fermenting corn, potatoes and rice. It does not enhance the four basic…
Read the definitionRandom terms
Show more- Hirudin An anticoagulant ('bloodthinner'). Hirudin is the active principle in the salivary secretion of leeches. The…
- Puerperal fever Fever that lasts for more than 24 hours within the first 10 days after a woman has had a baby. Puerperal…
- Quinquagenarian Someone in his or her fifties. See also: Age by decade
- Scoliosis, acquired Lateral (sideways) curving of the spine present at birth or due to a condition present at birth. The…
- Reading frame One of the three possible ways to read a nucleotide sequence in DNA or RNA as a series of nonoverlapping…
- Exercise, isotonic Exercise when a contracting muscle shortens against a constant load, as when lifting a weight. Isometric…
- Osteochondrosis Any disease that affects the progress of bone growth by killing bone tissue. Osteochondrosis is seen only in…
- Corneal dystrophy, microcystic A disorder in which the cornea (the normally clear front window of the eye) shows dots (or microcysts)…
- Takayasu arteritis Inflammation of aorta and its branches. See: Takayasu disease
- Sight, day Night blindness. Listed in medical dictionaries under 'Nyctalopia' from the Greek 'nyct' (night) + 'aloas'…
- AANAT The synbol for the enzyme arylalkylamine N-acetyltransferase and for the gene that encodes it. AANAT is…
- Persantine thallium scan A type of myocardial perfusion scan done to disclose any areas of the heart muscle that may not be getting…