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).
Heart-lung machine
A machine that does the work both of the heart (pump blood) and the lungs (oxygenate the blood). Used, for example, in open heart surgery. Blood returning to the heart is diverted through the machine before returning it to the arterial…
Read the definitionRandom terms
Show more- Sebaceous gland A normal gland of the skin which empties an oily secretion into the hair follicle near the surface of the skin
- Hereditary nonpolyposis colon cancer (HNPCC) An hereditary cancer syndrome which carries a very high risk of colon cancer and an above-normal risk…
- Osteogenesis imperfecta with blue sclerae See: Osteogenesis imperfecta type I.
- Surgery, reflux (fundoplication) A surgical technique that strengthens the barrier to acid reflux when the lower esophageal sphincter does not…
- Gynecomastia Excessive development of the male breasts. Temporary enlargement of the breasts is not unusual or abnormal in…
- Intrahepatic Within the liver.
- Nerve, pressor A pressor nerve is a nerve which, when stimulated, causes the blood pressure to rise. The word 'pressor'…
- Intracytoplasmic sperm injection (ICSI) A test-tube fertilization procedure in which a sperm is injected directly into an egg to achieve…
- Viremia The presence of a virus in the blood. Viremia is analogous to bacteremia (the presence of bacteria in the…
- Hemoglobin F Normal fetal hemoglobin, the predominant type of hemoglobin in the fetus and newborn. The F stands for Fetal.
- Needle biopsy, stereotactic See: Stereotactic needle biopsy
- Nebulization, heated Administration of medication via fine spray that has been heated to increase its water content