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).
Anesthetic
A substance that causes lack of feeling or awareness. A local anesthetic causes loss of feeling in a part of the body. A general anesthetic puts the person to sleep.
Read the definitionRandom terms
Show more- Oat cell cancer A type of lung cancer in which the cells are small, round and resemble oats. Also called small cell lung…
- Scoliosis, nonstructural A structurally normal spine that appears to have a lateral curve (scoliosis). Nonstructural scoliosis…
- Skull, hair-on-end Thin fine linear extensions radiating out from the skull that look on an X-ray like hair standing 'on-end'…
- Mortality rate, maternal The number of maternal deaths related to childbearing divided by the number of live births (or by the number…
- Social phobia Excessive fear of embarrassment in social situations that is extremely intrusive and can have debilitating…
- PCR (polymerase chain reaction) PCR (polymerase chain reaction): A key technique in molecular genetics that permits the analysis of any short…
- Aneurysm A localized widening (dilatation) of an artery, vein, or the heart. At the area of an aneurysm, there is…
- June cold A popular term for hay fever. Although the symptoms of a 'June cold' may be quite similar to those of a real…
- Thymus gland See: Thymus
- Dilatation The process of enlargement or expansion. For example, dilatation of the eye is the process by which the pupil…
- Injury, cold Cold injuries include chilblains, 'trench foot,' and frostbite. Cold injuries occur with and without freezing…
- Arthralgia Pain in the joints. There are many possible causes of pain in a joint. The Greek 'algos' means 'pain.