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).
Ad-
Latin prefix meaning 'toward' and 'in the direction of,' as in adduction (movement of a limb toward the midline of the body), adhesion, and adrenal (toward the kidney)
Read the definitionRandom terms
Show more- Synovial cyst, popliteal A swelling in the space behind the knee (the popliteal space). The swelling is composed of a membrane-lined…
- Drug test An examination of biologic material (such as urine, hair, saliva, or sweat) to detect the presence of…
- Tendo calcaneus See: Achilles tendon
- Encephalomyelitis Inflammation of both the brain and the spinal cord. Encephalomyelitis can be caused by a variety of…
- Claustrophobia An abnormal and persistent fear of closed spaces, of being closed in or being shut in, as in elevators…
- Anion A negatively charged ion. Pronounced an-I-on. An anion is as opposed to a cation, which is a positively…
- Myotonic dystrophy type 2 An inherited disorder of the muscles and other body systems characterized by progressive muscle weakness…
- Osteogenesis imperfecta type 1 An inherited connective tissue disorder featuring bone fragility and blue sclerae (blue whites of the eyes)…
- Measles encephalitis Inflammation of the brain (encephalitis) occurs in perhaps 1 in 1,000 cases of measles, starting (up to 3…
- Exercise cardiac stress testing The most widely used cardiac (heart) screening test. The patient exercises on a treadmill according to a…
- Microscopy The examination of minute objects by means of a microscope, an instrument which provides an enlarged image of…
- Molluscum contagiosum A contagious disease of the skin marked by the occurrence of rounded soft tumors of the skin caused by the…