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).
Lumbar
Referring to the 5 lumbar vertebrae which are situated below the thoracic vertebrae and above the sacral vertebrae in the spinal column. The 5 lumbar vertebrae are represented by the symbols L1 through L5. There are correspondingly 5…
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Show more- Ovary cyst, follicular A fluid-filled sac in the ovary, the most common type of ovarian cyst. It results from the growth of a…
- Ventricle A chamber of an organ. For example, the four connected cavities (hollow spaces) in the central portion of the…
- Ultraviolet C One of the three types of invisible light rays (together with ultraviolet A and ultraviolet B) given off by…
- Wolframin A protein encoded by a gene known as WFS1. Mutations in WFS1 are associated with Wolfram syndrome and also…
- Cholesterol guidelines The guidelines on cholesterol for adults. A 2004 update to the National Cholesterol Education Program's…
- Creatine A compound the body synthesizes (makes) and then utilizes to store energy. The storage of energy occurs when…
- Galton, Sir Francis English advocate of eugenics, the idea of improving the physical and mental makeup of the human species by…
- Nef gene Short for negative factor gene, a gene the absence (or defect) of which diminishes the strength of a disease…
- Encephalitis, arboviral See: Arboviral encephalitis
- Syndrome, Coffin-Lowry An X-linked form of mental retardation in which the affected males have short stature and characteristic…
- Trimester The nine months of pregnancy is traditionally divided into three trimesters: distinct periods of roughly…
- Artificial insemination by donor (AID) A procedure in which a fine catheter (tube) is inserted through the cervix (the natural opening of the…