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).
Hormone, antidiuretic (ADH)
A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after being made nearby (in the hypothalamus). ADH has an antidiuretic action that prevents the production of dilute urine (and so is…
Read the definitionRandom terms
Show more- Vaccine, Sabin The oral polio vaccine (OPV) developed by the Polish-born American microbiologist Albert B. Sabin (1906-93)
- Caspase 3 An enzyme that plays a key role in programmed cell death, or apoptosis. Caspase 3 has been called the…
- Minor A minor is someone who is not yet an adult and, in a larger sense, it is something that is less than…
- PARK2 Familial Parkinson disease type 2
- Epiphenomenon 1. An additional symptom or condition that appears during the course of a disease. A doctor might ask if you…
- Glial cell A supportive cell in the central nervous system -- the brain and spinal cord. Glial cells do not conduct…
- Manorexia A term that has been used to refer to anorexia nervosa in males. This is not an officially recognized medical…
- Gamma linolenic acid See: Gamma-linolenic acid
- Programmed cell death A term often used interchangeably with apoptosis. See: Apoptosis
- Borborygmus Bowel sounds, the gurgling, rumbling, or growling noise from the abdomen caused by the muscular contractions…
- Ejaculation Ejection of sperm and seminal fluid
- Genetic counselor A health professional with a specialized graduate degree and experience in the areas of medical genetics and…