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).
Antimetabolite
A drug that is similar enough to a natural chemical to participate in a normal biochemical reaction in cells but different enough to interfere with the normal division and functions of cells. So named because the drug inhibits a normal…
Read the definitionRandom terms
Show more- Acute-phase protein Any protein whose plasma concentration increases (or decreases) by 25% or more during certain inflammatory…
- Belching A normal process to relieve distention from the air that accumulates in the stomach. The upper abdominal…
- Iatromelia Ineffective or negligent medical treatment. From 'iatro-' meaning a relationship to a physician or medicine +…
- Quinquagenarian Someone in his or her fifties. See also: Age by decade
- Lice, head See: Head lice
- Scale, Fahrenheit Thermometer scale in which the freezing point of water is 32°F and the boiling point of water 212°F. The…
- Mortality, infant The death of an infant before his or her first birthday. The infant mortality rate is, by definition, the…
- Disease, Ritter This is the scalded skin syndrome, a potentially serious side effect of infection with the Staph…
- L- Abbreviation for levorotatory, applied to a chemical compound, as in l-dopa. Levorotary is opposed to…
- Pressor substance A substance that elevates the arterial blood pressure. For example, prostacyclin (prostaglandin PGI2) is a…
- Arthritis, quackery Like many people with chronic ailments, sufferers from arthritis are potentially vulnerable to proponents of…
- Donor, universal A person who is type O in the ABO blood group system and can donate blood to all recipients