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
A sex chromosome found in both females and males. Normal females usually have two X chromosomes. Normal males usually have one X along with a Y chromosome. The complete chromosome complement consisting of 46 chromosomes is conventionally…
Read the definitionRandom terms
Show more- Sigmoid volvulus See: Volvulus
- Whole-arm translocation A type of chromosome rearrangement, also called a Robertsonian translocation, in which there is fusion of an…
- ODD syndrome Oculodentodigital dysplasia
- Osteochondromatosis, synovial Any disease that affects the progress of bone growth by killing bone tissue. Osteochondrosis is seen only in…
- Drug activity A measure of the physiological response a drug produces. A less active drug produces less response (and visa…
- Pharmacist A professional who fills prescriptions, and in the case of a compounding pharmacist, makes them. Pharmacists…
- Dystrophy, myotonic An inherited disease in which the muscles contract but have decreasing power to relax -- this phenomenon is…
- ESRD End-stage renal disease
- Tuberculosis treatment Treatment of tuberculosis (TB), depends upon the status of the infection and differs for dormant and active…
- Tubal pregnancy A pregnancy that is not in the usual place within the uterus but is located in the Fallopian tube. Tubal…
- Epilepsy, petit mal See: Petit mal
- LL 1. Lower lid (of the eye). 2. Lower limit. The recommended LL for potassium intake is 4.7 grams per day for…