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).
X chromosome inactivation
See: X inactivation
Read the definitionRandom terms
Show more- Cushing, Harvey Renowned American neurosurgeon (1869-1939) whose name is now associated with Cushing syndrome (Cushing…
- Lassitude Weakness, weariness, listlessness, exhaustion, lethargy. For example, the patient complained of lassitude…
- Progestin Any one of a group of steroid hormones that have the effect of progesterone
- Alanine aminotransferase (ALT) An enzyme that is normally present in liver and heart cells. ALT is released into blood when the liver or…
- SCN (severe congenital neutropenia) Neutropenia): An condition characterized by a lack of neutrophils, a type of white blood cell that is…
- Atrophic vaginitis Thinning of the lining (the endothelium) of the vagina due to decreased production of estrogen. This may…
- Urine blood Blood in the urine. Also called hematuria. Gross hematuria refers to blood that is so plentiful in the urine…
- Esophagogastroduodenoscopy Esophagogastroduodenoscopy: Also known as EGD or upper endoscopy. A procedure that enables the examiner…
- Tarantella A remarkable example of early music therapy that originated in the region of Taranto, a city in southeastern…
- Pheresis Procedure in which the blood is filtered, separated, and a portion retained, with the remainder being…
- Ovary The female gonad, the ovary is one of a pair of reproductive glands in women. They are located in the pelvis…
- Advanced paternal age A man who is age 40 years or older at the time of conception. (There is no universally accepted definition of…