MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Vena cava, inferior
A large vein that receives blood from the lower extremities, pelvis and abdomen and empties it into the right atrium of the heart
Read the definitionRandom terms
Show more- Error of the first kind See: Error, alpha
- Allergic rhinitis Medical term for hay fever, a condition due to allergy that mimics a chronic cold. (Hay fever is a misnomer…
- Microphthalmia syndrome, Lenz Tattooing.
- JCV JC virus
- Dizziness, pre-syncopal Dizziness before fainting. Some symptoms of dizziness such as wooziness, feeling about to black out, and…
- National Institutes of Health Clinical Center : The clinical research facility of the National Institutes of Health (NIH) in the U.S. As a national…
- Tiredness See: Tired
- Allergic granulomatosis A disease (also often called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in…
- Syndrome, cavernous sinus A cavernous sinus thrombosis is a blood clot within the cavernous sinus, a large channel of venous blood in a…
- Osteochondrosis Any disease that affects the progress of bone growth by killing bone tissue. Osteochondrosis is seen only in…
- MELAS syndrome MELAS syndrome: MELAS is the acronym for Mitochondrial Encephalopathy, Lactic Acidosis, and Stroke-like…
- Androgenic Pertaining to the development of male characteristics, including body hair, the genital organs and muscle…