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).
Gene family
A group of genes related in structure and often in function. The genes belonging to a gene family are descended from an ancestral gene. For example, the hemoglobin genes of critical importance to red blood cells belong to one gene family…
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Show more- LLQ Abbreviation for the left lower quadrant (quarter). The LLQ of the abdomen contains the descending portion of…
- Stiff baby syndrome A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Cytometry, flow Analysis of biological material by detection of the light-absorbing or fluorescing properties of cells or…
- King's evil An old term for tuberculosis of the lymph nodes in the neck. Also known as scrofula
- Speech disorder A disorder affecting the ability to produce normal speech. Speech disorders may affect articulation (phonetic…
- Abstinence, periodic Also known as fertility awareness, natural family planning, and the rhythm method, this approach entails not…
- Did not attend (DNA) In the UK, DNA is an abbreviation for 'did not attend.' (In the US, the term used for a patient who missed an…
- Scan As a noun, the data or image obtained from the examination of organs or regions of the body by gathering…
- Treadmill A machine with a moving strip on which one walks without moving forward. A treadmill was originally a wide…
- Operating room A facility equipped for performing surgery. Abbreviated OR
- SLV Sapporo-like virus. See: Sapovirus
- Acuity, auditory The clarity or clearness of hearing, a measure of how well a person hears and monitoring the ability to hear…