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).
Hypercapnia
More than the normal level of carbon dioxide in the blood. Hypercapnia is as opposed to hypocapnia and acapnia. The origin of the suffix '-capnia' is curious. It comes from the Greek 'kapnos' referring to carbon dioxide which is a…
Read the definitionRandom terms
Show more- Ear canal, self-cleaning Most of the time the ear canals are self-cleaning, that is, there is a slow and orderly migration of ear…
- Fear of blood An abnormal and persistent fear of blood. Sufferers of this very common phobia dread the sight of their own…
- GDB The Genome Database (GDB), the official central repository for genomic mapping data resulting from the Human…
- Olfactory nerve A nerve that registers smells by carrying the impulses for the sense of smell from the nose to the brain…
- Vaccine, killed polio See: Polio vaccine, inactivated
- Fibrous dysplasia, polyostotic The lateral (outside) and smaller of the two long bones in the lower leg between the knee and ankle. (The…
- Disease, Wilson An inherited disorder in which too much copper accumulates in the body. Although the accumulation of copper…
- Melatonin A hormone produced by the pineal gland, melatonin is intimately involved in regulating the sleeping and…
- Injury, knee meniscus Injury to one of the two crescent-shaped cartilage pads between the two joints formed by the femur (the thigh…
- Newborn test, Brazelton A widely used test of the newborn baby as to their neurologic status and developmental progress. The…
- Vesicular rickettsiosis A mild infectious disease first observed in New York City, caused by Rickettsia akari, transmitted from its…
- Abscess, skin See: Skin abscess