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).
Post-traumatic stress
Stress: An anxiety disorder that develops in some individuals who have had major traumatic experiences. The person is typically numb at first but later has symptoms including depression, excessive irritability, guilt (for having survived…
Read the definitionRandom terms
Show more- Tissue plasminogen activator (tPA) An enzyme that helps dissolve clots. tPA is made by the cells lining blood vessels and has also been…
- AIDS-related complex A term used to describe people with HIV infection who have only mild symptoms of illness such as swollen…
- Palatine bone A bone behind the maxilla which enters into the formation of the hard palate (hence, the name 'palatine')…
- Sandfly fever An acute mild viral disease characterized by fever, malaise, eye pain, and headache occurring mainly during…
- Tympano- Prefix indicating a relationship to the ear drum (tympanum). For example, tympanometry is a test that…
- Under the weather Colloquial expression for sick or ill as, for example, to be under the weather with the flu. The phrase…
- Leg, upper The upper leg is the superior (top) segment of the leg: the part above the knee. As compared to the lower leg…
- Ileus Obstruction of the intestine due to it being paralyzed. The paralysis does not need to be complete to cause…
- Efferent Carrying away. An artery is an efferent vessel carrying blood away from the heart. An efferent nerve carries…
- Intolerance, lactose The inability to digest lactose, a sugar component of milk and most other dairy products. Lactose is…
- Bone, shin The larger of the two bones in the lower leg (the smaller one being the fibula). The shin bone is…
- DNA sequence, finished A DNA sequence in which the bases are identified to an accuracy of no more than 1 error in 10,000 and are…