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).
Y chromosome infertility
Male infertility with oligozoospermia (a subnormal number of sperm) or azoospermia (the absence of sperm) caused by deletion or rearrangement of the long arm of the Y chromosome, as demonstrated by chromosome analysis or by molecular…
Read the definitionRandom terms
Show more- Herpes, febrile A small sore situated on the face or in the mouth that causes pain, burning, or itching before bursting and…
- Raw egg Uncooked, unpasteurized egg. Salmonella enteritidis, a harmful bacterium, can be transmitted from infected…
- Visual contrast sensitivity The ability to perceive differences between an object and its background
- Natriuretic Causing natriuresis, the excretion of an excessively large amount of sodium in the urine. A hybrid of the…
- USPHS (United States Public Health Service) The agency responsible for the public health of the American people. The Public Health Service (PHS)…
- Knock-knees An abnormal curve of the legs that causes the knees to touch or nearly touch while the feet are apart. The…
- Arthritis, spondylitis A form of arthritis causing chronic inflammation of the spine
- Absorb 1. To take something in, as through the skin or the intestine.2. To react with radiation and reduce it in…
- Clostridium welchii See: Clostridium perfingens.
- Rectal cancer Cancer: A malignant tumor arising from the inner wall of the final part of the large intestine -- the rectum…
- Ear ringing Together with other abnormal ear noises, ear ringing is medically called tinnitus. Tinnitus can arise in any…
- CPEO with myopathy See: Kearns-Sayre syndrome