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.
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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).
Nonpenetrant trait
A genetic trait (characteristic) that is present in the genome but does not manifest itself in the individual. By contrast, a penetrant trait is one that manifests itself. If, for example, if 100 people have a particular genetic trait but…
Read the definitionRandom terms
Show more- Anemia, refractory Anemia (a shortage of red blood cells) unresponsive to treatment
- Foot, athlete A skin infection caused by a fungus called Trichophyton which can thrive and infect the upper layer of the…
- Deficiency, alpha-galactosidase A See: Fabry disease
- Human genome All of the DNA that a person possesses. The human genome is made up of all of the DNA in our chromosomes as…
- Metatarsals Five cylindrical bones extending from the heel (the tarsus) to the toes. The metatarsals are numbered from…
- Slipped disc Rupturing of the tissue that separates the vertebral bones of the spinal column. The center of the disc…
- Exercise treadmill test A test (sometimes simply called a treadmill test or exercise test) in which a continuous electrocardiogram…
- Tok- From the Greek word 'tokos' meaning childbirth, we have toc-, toco-, tok-, and toko- as combining forms, all…
- Reflex sympathetic dystrophy (RSD) A condition characterized by diffuse pain, swelling and limitation of movement that follows an injury such as…
- Elbow, tennis A painful injury to the tendon that is attached to the outer part of the elbow due to repetitive twisting of…
- Cranial nerve, fifth The fifth cranial nerve is the trigeminal nerve. The trigeminal nerve is quite complex. It functions both as…
- Aer-, aero- Prefix indicating a problem due to air or gas, such as aerogastria (excess stomach gas.