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).
Eugenics
Literally, meaning normal genes, eugenics aims to improve the genetic constitution of the human species by selective breeding. The use of Albert Einstein's sperm to conceive a child (by artificial insemination) would represent an attempt…
Read the definitionRandom terms
Show more- Hereditary amyotrophic lateral sclerosis See: Familial ALS
- Daltonism Colorblindness of the red-green type (also known as deuteranopia or deuteranomaly). The term 'Daltonism' is…
- Stroke, National Institute Neurological Disorders Nd (NINDS): One of the National Institutes of Health in the U.S., the NINDS's mission is to 'support and…
- Phenylalanine hydroxylase deficiency The inherited inability to process the amino acid phenylalanine normally, due to deficiency of the enzyme…
- Lenz microphthalmia syndrome A genetic disorder characterized by microphthalmia (small eye) or anopthalmia (no eye) associated with…
- Hydrogen The most plentiful element in the universe and one present in all organic compounds. Hydrogen is a gas with…
- Posterior cruciate ligament (PCL) The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- Olecranon Of or pertaining to the bony tip of the elbow. The olecranon is, in fact, the near end of the ulna, the bone…
- Facial muscle One of the 43 muscles in the human face. The facial muscles convey basic human emotions such as anger…
- Adenosine A nucleoside containing adenine as its base. Adenosine acts to dilate the coronary arteries and is employed…
- Semen The fluid that is released through the penis during orgasm. Semen is made up of fluid and of sperm. The fluid…
- Voluntary Euthanasia Society (VES) The first society of its kind in the world -- its founders included doctors, lawyers and churchmen -- the VES…