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).
Aortic valve, bicuspid
Whereas the normal aortic valve in the heart has three flaps (cusps) that open and close, a bicuspid valve has only two. There may be no symptoms in childhood, but in time the valve may become stenotic (narrowed), making it harder for…
Read the definitionRandom terms
Show more- Hypoosmolar In biochemistry, referring to hypoosmolarity, an abnormal decrease in the osmolarity of the body fluids
- Dysarthria Speech that is characteristically slurred, slow, and difficult to produce (difficult to understand). The…
- Zolpidem Zolpidem: Brand name: Ambien. A sedative hypnotic drug in a class closely related the benzodiazepines…
- Popliteal pterygium syndrome An inherited condition with a web behind the knee. (A pterygium is a winglike triangular membrane). The…
- Recurrent trisomy Recurrence of trisomy, as when there are two or more children with trisomy in the same family. Recurrent…
- Titin A giant filamentous protein essential to the structure, development, and elasticity of muscle. The gene…
- Submandibular gland The second largest of the three major salivary glands. It is located deep to the mandible (jaw bone).
- Bergstrom See: Bergström, Sune K.
- Memory, short-term A system for temporarily storing and managing information required to carry out complex cognitive tasks such…
- Gallop rhythm Heart rhythm like the gallop of a horse.
- Birthmark A persistent visible mark on the skin that is evident at birth or shortly thereafter. A birthmark is often…
- Ichthyosis Dry, rectangular scales on the skin. Like fish scales. From the Greek 'ichthys' meaning fish. Ichthyosis is…