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).
Mycobacterium leprae
The bacillus responsible for leprosy (Hansen disease). Mycobacterium leprae is an obligate parasite that has to live within cells. There it is able to withstand the onslaught of enzymes and other forces by virtue of possessing a peculiarly…
Read the definitionRandom terms
Show more- Carboxyhemoglobin Hemoglobin that has carbon monoxide instead of the normal oxygen bound to it. Carbon monoxide has a much…
- Septum, heart The septum of the heart is the dividing wall between the right and left sides of the heart. That portion of…
- Anal papilla A skin tag that projects up from the junction between the skin and the inside lining of the anus. Anal…
- Tomography, computerized axial Pictures of structures within the body created by a computer that takes the data from multiple X-ray images…
- Secretase, beta- An enzyme that appears to be directly involved in the early development of Alzheimer's disease…
- Seventh cranial nerve The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in…
- Amyloidosis, secondary Amyloidosis, secondary : One of a group of diseases (called amyloidosis) in which protein deposits (amyloid)…
- Male chromosome See: Y chromosome
- Stomach paralysis Formally called gastroparesis, this is a medical condition in which the muscle of the stomach is paralyzed by…
- Alkaloid A member of a large group of chemicals that are made by plants and have nitrogen in them. Many alkaloids…
- Viable Capable of life. For example, a viable premature baby is one who is able to survive outside the womb.
- Vertebra, first cervical The first cervical (neck) vertebra is called the atlas. It supports the head. The atlas bone is named for the…