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).
Uterus, contraction of the
The tightening and shortening of the uterine muscles. During labor, contractions accomplish two things: (1) they cause the cervix to thin and dilate (open); and (2) they help the baby to descend into the birth canal. Uterine contractions…
Read the definitionRandom terms
Show more- Occlusion The act of occluding. See: Occlude
- Glucose, fasting blood Glucose, fasting blood: A method for learning how much glucose (sugar) there is in a blood sample taken after…
- Hyperthermia, malignant A series of potentially fatal problems that can occur during surgery, malignant hyperthermia is caused by a…
- AQP Aquaporin
- Second-hand smoke Environmental tobacco smoke that is inhaled involuntarily or passively by someone who is not smoking…
- Saline Relating to salt. As an adjective, 'saline' means 'salty, containing salt.' As a noun 'saline' is a salt…
- H. erectus See: Homo erectus
- Compassionate use Term used in the US for a method of providing experimental therapeutics prior to final FDA approval for use…
- Negative, false A result that appears negative but fails to reveal a situation. An example of a false negative: a particular…
- Rhythm, sinus The normal regular rhythm of the heart set by the natural pacemaker of the heart called the sinoatrial (or…
- First American medical journal The Medical Repository, founded in 1797 and published quarterly until 1824. The Medical Repository was the…
- Pes planum Flat feet