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
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Show more- Renal calculi Kidney stones. A common cause of blood in the urine and pain in the abdomen, flank, or groin. Occurs in 1 in…
- Fetoscopy A technique for looking directly at the fetus within the uterus (using a fetoscope).
- Pineal region tumor A brain tumor on or near the pineal gland. There are at least 17 types of pineal gland tumors, most of which…
- Immunotherapy Treatment to stimulate or restore the ability of the immune (defense) system to fight infection and disease…
- Olfactory apparatus The entire system needed to have a sense of smell. This system involves at least 1,000 genes for the…
- Ringworm (tinea) Ringworm (tinea): Ringworm is a fungal infection of the skin previously thought to be due to a parasite…
- Asplenic Pertaining to asplenia, the state of being without a spleen or without a functional spleen. The spleen can be…
- Diarrhea, traveler's Diarrhea illness associated with travel to a foreign country. Among the causes of traveler's diarrhea are…
- PET scan The popular name (and abbreviation) of Positron Emission Tomography
- Hoarding, pathological Hoarseness is a term referring to abnormal voice changes. Hoarseness may be manifested as a voice that sounds…
- Insufficiency, aortic See: Aortic insufficiency
- Poisoning, sea An intensely itchy rash due to contact with the tiny thimble jellyfish (Linuche unguiculata). These jellyfish…