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).
Thoracic aorta
The thoracic aorta is a section of the aorta, the largest artery in the body, within the chest. Specifically, the thoracic aorta is that part of the aorta that starts after the arch of the aorta and runs down to the diaphragm, the great…
Read the definitionRandom terms
Show more- Contractions, Braxton Hicks Irregular contractions of the womb (the uterus) occurring towards the middle of pregnancy in the first…
- Chlamydia A type of bacteria one species of which causes an infection very similar to gonorrhea in the way that it is…
- Histamine Substance that plays a major role in many allergic reactions. Histamine dilates blood vessels and makes the…
- Bone cyst, simple A solitary fluid-filled cyst (cavity) in a bone, usually in the shaft of a long bone, especially the humerus…
- CDHR Center for Devices & Radiological Health, part of the FDA (the US Food & Drug Administration)
- Oocyte A female germ cell in the process of development. The oocyte is produced in the ovary by an ancestral cell…
- Guided imagery An alternative medicine technique in which patients use their imagination to visualize improved health, or to…
- Imbibe 1. To drink, especially alcoholic beverages. 2. To absorb or take up fluid.From the Latin imbibere (to drink…
- Disease, inflammatory bowel A group of chronic intestinal diseases characterized by inflammation of the bowel -- the large or small…
- Second wave A phenomenon of infections that can develop during a pandemic. The disease infects one group of people first…
- Withdrawal symptoms Abnormal physical or psychological features that follow the abrupt discontinuation of a drug that has the…
- Ragweed Any of a number of weedy composite herbs that produce a pollen that is a frequent cause of allergies. Of all…