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).
Gallbladder absence
This condition, also known as agenesis (failure of development) of the gallbladder, occurs in approximately one out of every 1,000 people. Gallbladder agenesis is an isolated abnormality in more than two-thirds (70%) of people with…
Read the definitionRandom terms
Show more- Periodontal The word 'periodontal' literally means 'around the tooth.' Periodontal diseases are bacterial infections that…
- Lipid profile Pattern of lipids in the blood. (A lipid profile usually includes the total cholesterol, high density…
- Sebaceous gland A normal gland of the skin which empties an oily secretion into the hair follicle near the surface of the skin
- Thrombin A key clot promoter, thrombin is an enzyme that presides over the conversion of a substance called fibrinogen…
- Newborn intensive care unit An intensive care unit designed for premature and ill newborn babies. Abbreviated NICU. Also called a…
- Torpor Sluggishness, dullness, languor, lassitude, stupor, torpidity. People can fall into a state of torpor, as can…
- Metacentric chromosome A chromosome with arms of equal length.
- Idiocy, amaurotic familial An outdated term for Tay-Sachs disease (TSD) which is concisely defined by OMIM (Online Mendelian Inheritance…
- Cell fusion The melding of two or more cells into one cell called a heterokaryon. A heterokaryon may reproduce itself for…
- Round window The membrane separating the inner ear and middle ear. The tympanum (eardrum) separates the middle ear and…
- Brain biopsy Biopsy of the brain. Removal of a small piece of tissue from the brain for diagnostic purposes. One way the…
- Magnetic resonance perfusion imaging A special type of magnetic resonance imaging (MRI) that uses an injected dye in order to see blood flow…