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).
Levonorgestrel
A progestin. Named levonorgestrel because it is the levorotatory form of norgestrel. Used in combination with an estrogen as an oral contraceptive. Used alone for emergency contraceptive (in Plan B) and the treatment of menstrual disorders…
Read the definitionRandom terms
Show more- Dyshidrotic eczema Irritation of the skin on the palms of hands and soles of the feet characterized by clear, deep blisters that…
- Genetics The scientific study of heredity. Genetics pertains to humans and all other organisms. So, for example, there…
- Septum, nasal The dividing wall within the nose. The nasal septum runs down the middle of the nose creating two sides to…
- ARMD Age-related macular degeneration (which may also be abbreviated as AMD)
- Palmar surface The palm or grasping side of the hand
- Dysmorphophobia Excessive dislike of a part of ones body. See: Body dysmorphic disorder
- Inheritance, Y-linked Inheritance of genes on the Y chromosome. Since only males normally have a Y chromosome, Y-linked genes can…
- MtDNA Mitochondrial DNA (mtDNA) is the DNA of the mitochondrion, a structure situated in the cytoplasm of the cell…
- Physicians Health Study A very large, long-term, randomized study initiated in 1982 to look at the effects of aspirin and…
- CVA Cerebrovascular accident
- Capsule of Glisson See Glisson's capsule
- Erythropoietin test Erythropoietin test: A test of the hormone erythropoietin (EPO) in blood. An abnormal level of EPO may mean…