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).
Environmental Protection Agency
>All Americans are protected from significant risks to human health and the environment where they live, learn and work. >National efforts to reduce environmental risk are based on the best available scientific information. >Federal laws…
Read the definitionRandom terms
Show more- Osteogenesis imperfecta type 2 An inherited connective tissue disorder with extremely severe bone fragility. This is the lethal form of…
- CEPT Cholesterol ester transfer protein
- Acuity, visual The clarity or clearness of the vision, a measure of how well a person sees. The ability to distinguish…
- Eczema, contact A localized reaction that includes redness, itching, and burning where the skin has come into contact with an…
- L1-L5 (lumbar vertebrae) The symbols L1 through L5 represent the five lumbar vertebrae. The lumbar vertebrae are situated between the…
- YAG laser surgery The use of a YAG (yttrium-aluminum-garnet) laser to do surgery. One use for a YAG laser in surgery is to…
- Heart-hand syndrome See: Holt-Oram syndrome
- Cranial nerve VIII The eighth cranial nerve is the vestibulocochlear nerve. The vestibulocochlear nerve is responsible for the…
- Febrile herpes A small sore situated on the face or in the mouth that causes pain, burning, or itching before bursting and…
- Inborn error of metabolism A heritable disorder of biochemistry. Examples of inborn errors of metabolism include albinism, cystinuria (a…
- Posterior pituitary The back portion of the pituitary, a small gland in the head called the master gland. The posterior pituitary…
- Abdomen, acute The abrupt (acute) onset of abdominal pain. A potential medical emergency, an acute abdomen may reflect a…