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).
Osteogenesis imperfecta
Brittle bone disease. Osteogenesis imperfecta (OI) is not one but a group of genetic diseases, all of which affect collagen in connective tissue in the body and all of which result in fragile bones. The best known types are types I and II
Read the definitionRandom terms
Show more- Family history of colorectal cancer See: Colon cancer family history
- Fever blister A small sore situated on the face or in the mouth that causes pain, burning, or itching before bursting and…
- Fibrofolliculomas, trichodiscomas and acrochordons See: Birt-Hogg-Dube syndrome
- Hypertension, white coat A transient increase in blood pressure (hypertension) triggered by the sight of medical personnel in white…
- Fatal familial insomnia Abbreviated FFI. An hereditary prion disease characterized by disrupted sleep (insomnia), motor abnormalities…
- Chemokine receptor Chemokine receptor: A molecule that receives a chemokine and a chemokine dock. A chemokine is a protein that…
- Inch In length, 1/12th of foot or 1/36 of a yard or, metrically, 2.54 centimeters. The inch, along with the foot…
- TRNA Transfer RNA
- Blindness, night Impaired vision in dim light and in the dark, due to impaired function of specific vision cells (namely, the…
- Precocious puberty Precocious puberty is the unusually early development of secondary sexual features. The onset of sexual…
- LUL Acronym for the left upper lobe (of the lung). The left lung has but two lobes. The other lobe is naturally…
- Sweat gland The sweat (sudoriferous) glands are small tubular structures situated within and under the skin (in the…