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).
UV radiation
Ultraviolet radiation. Invisible rays that are part of the energy that comes from the sun, can burn the skin, and cause skin cancer. UV radiation is made up of three types of rays -- ultraviolet A (UVA), ultraviolet B (UVB), and…
Read the definitionRandom terms
Show more- Sopor Abnormally deep sleep, an unusually profound sleep, a stupor from which it is difficult to rouse a person…
- Error, beta The statistical error (said to be 'of the second kind' or type II) made in testing an hypothesis when it is…
- Atlantoaxial Pertaining to the first and second cervical vertebrae which meet at a joint called the atlantoaxial joint…
- Neuroendocrinology Having to do with the interactions between the nervous system and the endocrine system. In the human body…
- Reye syndrome Reye syndrome: A sudden, sometimes fatal, disease of the brain (encephalopathy) with degeneration of the…
- Version 1. In obstetrics, the process of turning the fetus. A cephalic version brings the fetal head into the birth…
- Black eye Bruising of the eyelid and/or under- eye area as a result of trauma to the eye. Colloquially called a shiner
- Antioxidant Any substance that reduces oxidative damage (damage due to oxygen) such as that caused by free radicals. Free…
- Leukemia Leukemia: Cancer of the blood cells. The growth and development of the blood cells are abnormal. Strictly…
- Condition The term 'condition' has a number of biomedical meanings including the following: > >An unhealthy state, such…
- Yttrium A rare elemental metal. A radioactive form of yttrium is used in radiation therapy and some types of…
- Reticuloendotheliosis, leukemic See: Hairy cell leukemia