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).
Oligodendrocyte
A type of cell in the central nervous system. The oligodendrocytes surround and insulate the long fibers (the axons) through which the nerves send their electrical messages. The term 'oligodendrocyte' comes from the fact that through a…
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Show more- Brittle bone disease Osteogenesis imperfecta, not one but a group of genetic diseases, all of which affect collagen, a key…
- Therapeutic touch A practice derived from an ancient technique called laying on of hands. It is based on the premise that it is…
- Directives, advance medical These documents pertain to treatment preferences and the designation of a surrogate decision-maker in the…
- Red-green colorblindness A form of colorblindness in which red and green are perceived as identical. This is the most common type of…
- Macula A macula is a small spot. A macula on the skin is a small flat spot while the macula in the eye is a small…
- P53 A tumor suppressor. The designation 'p53' stands for 'protein 53 kilodaltons' in size. p53 is a specific…
- Dilation, pupil (test) This examination enables your eye care professional to see more of your retina, the light-sensitive layer of…
- Dengue hemorrhagic fever (DHF) Fever (DHF): A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal…
- NICHD A silver-white metallic element. Long-term exposure to nickel, such as from jewelry, can cause a form of…
- Fundus, retinal The interior lining of the eyeball, including the retina (the light-sensitive screen), optic disc (the head…
- Four-finger line See: Simian crease
- Gyno- Combining form pertaining to women. From the Greek gyno, gynaikos meaning woman