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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Vitamins
>Vitamin A: Retinol. Carotene compounds responsible for transmitting light sensation in the retina of the eye. Deficiency leads to night blindness. >Beta carotene: An antioxidant which protects cells against oxidation damage that can lead…
Read the definitionRandom terms
Show more- Eyelash One of the familiar stiff hairs that project from the margin of the eyelid. Eyelashes tend to be noticed…
- Thorn, George W. American endocrinologist (1906-2004) who was a pioneer in the use of cortisone for treating Addison's…
- Patellar reflex See: Knee jerk
- Cardiopulmonary Having to do with both the heart and lungs
- Elizabeth Kubler-Ross See: Kubler-Ross, Elisabeth
- Sac, yolk See: Yolk sac
- Occipital hematoma A hematoma (collection of blood) in the occipital region (at the back of the head). An occipital hematoma may…
- Stem cell One of the human body's master cells, with the ability to grow into any one of the body's more than 200 cell…
- Lab result The result of a test done in a laboratory
- Ethylene oxide A chemical widely used in the health care industry to sterilize medical devices and also used to make other…
- Disease, sickle cell A genetic blood disease due to the presence of an abnormal form of hemoglobin, namely hemoglobin S…
- Bevacizumab Generic name for a monoclonal antibody anticancer drug. See: Avastin