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).
Family, gene
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…
Read the definitionRandom terms
Show more- Oriental lung fluke Paragonimus westermani. See: Paragonimiasis
- Small intestine The part of the digestive tract that extends from the stomach to the large intestine
- Bruit A sound, especially an abnormal one. A bruit may be heard over an artery or vascular channel, reflecting…
- Achondrogenesis type II A severe inherited disorder of bone growth characterized by a short body and limbs and a lack of bone…
- Tachycardia, sinus A fast heartbeat (tachycardia) because of rapid firing of the sinoatrial (sinus) node. The sinoatrial (or…
- Vaccinia, disseminated See Progressive vaccinia
- REM sleep Sleep: REM sleep is the portion of sleep when there are rapid eye movements (REMs). Dreams occur during REM…
- Genetic transformation A process by which the genetic material carried by an individual cell is altered by the incorporation of…
- Gua-sha A method in tradition Chinese medicine in which the skin on the back, limbs, and other parts of the body is…
- Rape, date Rape of a woman by a man with whom she is acquainted. The rapist is usually the woman's 'date' (escort)…
- IL-4 Interleukin-4
- Affinity In immunology, the strength of binding interaction between antigen and antibody molecules