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).
Toco-
Prefix meaning childbirth. For example, tocolysis is the slowing or halting of labor. Sometimes spelled tok-, toko-
Read the definitionRandom terms
Show more- Ring chromosome A structurally abnormal chromosome in which the end of each chromosome arm has been lost and the broken arms…
- Saturated fat A fat that is solid at room temperature and comes chiefly from animal food products. Some examples are…
- Ascending aorta The ascending aorta is the first section of the aorta, the largest artery in the body. The ascending aorta…
- ADAMTS2 A gene that encodes a metalloproteinase enzyme. This enzyme is responsible for processing type I, type II…
- Laser, argon See: Argon laser
- XX The sex chromosome complement of a normal human female. See also X chromosome
- Diathesis In medicine, a 'diathesis' is an elegant term for a predisposition or tendency. Thus, a hemorrhagic diathesis…
- Mucopolysaccharidosis type IIIB Sanfilippo syndrome due to deficiency of the enzyme alpha-N-acetylglucosaminidase. See also…
- Growing pains Mysterious pains in growing children, usually in the legs. These pains are similar to what the weekend…
- QT syndrome, long An inherited defect in the heart rhythm. In the US alone, it is estimated that 4,000 children and young…
- Chicken genome The genome of the Red Jungle Fowl, Gallus gallus, the ancestor of domestic chickens, comprising about 1…
- National Institute of Neurological Disorders Stroke (NINDS): One of the National Institutes of Health in the U.S., the NINDS's mission is to 'support and…