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).
Methotrexate
Methotrexate: A drug that acts as an antimetabolite and specifically as a folic acid antagonist that inhibits the synthesis of DNA, RNA, and protein. Methotrexate (MTX) is used to treat diseases associated with abnormally rapid cell growth…
Read the definitionRandom terms
Show more- Canine genome See: Dog genome
- Neuroma, acoustic A benign tumor that may develop on the hearing and balance nerves near the inner ear. The tumor results from…
- Coronary artery disease >Chest pain (angina pectoris) from inadequate blood flow to the heart; >Heart attack (acute myocardial…
- Ulcer, aphthous Ulcer, aphthous: A small sensitive painful ulcer crater in the lining of the mouth. Commonly called a canker…
- Surveillance and containment See: Ring vaccination
- Minimal residual disease Evidence for the presence of residual malignant cells, even when so few cancer cells are present that they…
- Rash, vesicular A raised, blistery rash
- Rate, basal metabolic A measure of the rate of metabolism. For example, someone with an overly active thyroid will have an elevated…
- Vertical transmission Passage of a disease-causing agent (a pathogen) vertically from mother directly to baby during the perinatal…
- Tube, endotracheal A flexible plastic tube that is put in the mouth and then inserted down into the trachea (the airway). The…
- Physiologic jaundice of the newborn Although there can be a diversity of physiologic stress tests, this refers here to a physiologic cardiac…
- Physician assistant (PA) >Medical histories and physical examinations: a PA is usually can perform histories and physical examinations…