MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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.
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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).
Protean
Very variable; easily changing; or continually changing. Protean is not to be confused with protein (a member of a large group of chemicals necessary to and found in all living things). Protean refers to Proteus, the mythologic master of…
Read the definitionRandom terms
Show more- Psoas Muscles of the lower back (the loin). There are two psoas muscles on each side of the back. The larger of the…
- Respiratory disease, acute A sudden condition in which breathing is difficult and the oxygen levels in the blood abruptly drop lower…
- Throat The throat is the anterior (front) portion of the neck beginning at the back of the mouth, consisting…
- Colitis, granulomatous Crohn's disease of the colon (the large intestine). Crohn's disease is a chronic inflammatory disorder…
- Osteoarthropathy Any disease of the bones and joints. From osteo-, bone + -arthro-, joint, + pathy, disease
- Power of attorney, durable This is a type of advance medical directive in which legal documents provide the power of attorney to another…
- Cone dystrophy A disease of the cones, the specialized light-sensitive cells that act as photoreceptors in the retina of the…
- Anatomy, Gray's See: Gray's Anatomy
- Poland syndactyly A unique pattern of one-sided malformations characterized by a defect of the chest (pectoralis) muscle on one…
- Cyst, synovial, of the popliteal space A swelling in the space behind the knee (the popliteal space). The swelling is composed of a membrane-lined…
- Cancer, skin Cancer, skin: Cancer of the outer surface of the body. The most common cancer in the U.S. There are many…
- Brachytherapy, coronary artery A slow heart rate, usually defined as less than 60 beats per minute. The word bradycardia is logically…