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).
Aorta, descending
The descending aorta is the part of the aorta, the largest artery in the body, that runs down through the chest and the abdomen. The descending aorta starts after the arch of the aorta and ends by splitting into two great arteries (the…
Read the definitionRandom terms
Show more- Nausea Nausea, is the urge to vomit. It can be brought by many causes including, systemic illnesses, such as…
- Rh incompatibility The difference in Rh blood group types between an Rh negative mother and her Rh positive baby that leads to…
- Axillary hyperhidrosis Hyperhidrosis: Excessive sweating from the armpits. Excessive underarm perspiration tends to start in late…
- Structural genomics The study of the proteome, the three-dimensional structures of thousands upon thousands of proteins, in fact…
- Music therapy The use of music in therapy; the therapeutic use of music. There are many different definitions of music…
- Twisted ankle See: Ankle sprain
- Hemostasis, genetics of Inherited factors that play a role in hemostasis, the stoppage of blood flow through a blood vessel. There is…
- Anemia, pernicious A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not produce the…
- Absolute neutrophil count The real number of white blood cells (WBCs) that are neutrophils. The absolute neutrophil count is commonly…
- ATL The disease variously called adult T-cell leukemia, adult T-cell leukemia/lymphoma and adult T-cell lymphoma…
- Multifocal Having to do with two or more foci or arising from two or more places. For example, aortic aneurysm disease…
- Reaction, desmoplastic This term refers to the growth of fibrous or connective tissue. Some tumors elicit a desmoplastic reaction…