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.
- 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).
Radiotherapy, stereotactic
Radiation therapy in which a number of precisely aimed beams of ionizing radiation coming from different directions meet at a specific point, delivering the radiation treatment to that spot
Read the definitionRandom terms
Show more- Mimetic The adjective for 'mimesis' -- imitation or mimicry. A radiomimetic drug is one that imitates the effects of…
- Amygdaloid body See: Amygdaloid nucleus
- Gram calorie See: Calorie
- Barbara McClintock See: McClintock, Barbara
- Melanin A skin pigment (substance that gives the skin its color). Dark-skinned people have more melanin than light-…
- Lymphoreticulosis, benign Cat scratch disease, a mild flu-like infection, with swollen lymph nodes (lymphadenitis) and mild fever of…
- Smoke, second-hand Environmental tobacco smoke that is inhaled involuntarily or passively by someone who is not smoking…
- Inhalant 1. Generally, any breathable chemical vapor.2. Specifically, a psychoactive substance whose volatile vapors…
- Aerosol 1. In general, a fine mist or spray which contains minute particles.2. In medicine, a spray administered by a…
- Pulse, cannonball See: Pulse, water hammer
- Focal dystonia due to blepharospasm The involuntary forcible closure of the eyelid due to spasms. The first symptoms may be uncontrollable…
- Passive smoking The inhaling of environmental tobacco smoke (ETS) by someone who is not smoking. See: ETS