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).
Letrozole
Letrozole: An oral antiestrogen. Letrozole inhibits the enzyme aromatase in the adrenal glands that produces the estrogens (estradiol and estrone) and thereby lowers their levels. The brand name of letrozole is Femara. See also: Aromatase…
Read the definitionRandom terms
Show more- Red cell count The number of red blood cells (RBCs) in a volume of blood. The normal range varies slightly between…
- Spine, slipped See: Spondylolisthesis
- Balance A biological system that enables us to know where our bodies are in the environment and to maintain a desired…
- CLIP 1. Abbreviation for Corticotropin-Like Intermediate-lobe Peptide, a molecule identical to part of…
- Hypercholesterolemia High blood cholesterol. This can be sporadic (with no family history) or familial. Familial…
- Mycobacterium tuberculosis The bacterium that causes tuberculosis. M. tuberculosis has unusually waxy walls, is slow-growing and among…
- Corneal ring, intrastromal A plastic ring designed to be implanted in the cornea, the transparent structure in the front of the eye. The…
- Herbalist One versed in herbal lore and, in regard to therapy, an herb doctor.
- Chin Medically, the mentum. The lower portion of the face below the lower lip including the prominence of the…
- Atypical measles syndrome (AMS) Measles syndrome (AMS): An altered expression of measles, AMS begins suddenly with high fever, headache…
- Homocystinuria A genetic disease due to an enzyme deficiency. Among other events, there is a buildup of the amino acid…
- Velpeau hernia Hernia: A hernia in the groin in front of the femoral blood vessels. A hernia ('rupture') is a protrusion of…