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).
Cytotoxic T-lymphocyte
A T cell that is antigen-specific and is able to search out and kill specific types of virus-infected cells. When cytotoxic T-lymphocytes (CTLs) find cells carrying the viral peptide they are looking for, they induce these cells to secrete…
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Show more- Anal fissure Anal fissure: Common tear in the anal canal. Anal fissure is a common cause of red blood in the stool.
- Gland, adrenal One of a pair of small glands, each of which sits on top of one of the kidneys. The adrenal is made up of an…
- Remodeling, chromatin See: Chromatin remodeling
- Ectopic pregnancy Ectopic pregnancy: A pregnancy that is not in the uterus. The fertilized egg settles and grows in any…
- Tripeptide A peptide consisting of three amino acids
- Estrogens Female hormones produced by the ovaries. Estrogen deficiency can lead to osteoporosis. Estrogen therapy…
- Syndrome, Shulman's (Eosinophilic fasciitis) A disease which leads to inflammation and thickening of the skin and fascia. (The fascia is a lining tissue…
- Fondation Jean Dausset-CEPH The Centre d'Etudes du Polymorphisme Humain (CEPH), an internationally renowned research laboratory created…
- Morgagni's tubercle See: Olfactory bulb
- Zollinger-Ellison syndrome A rare disorder caused by a tumor called a gastrinoma, most often occurring in the pancreas. The tumor…
- BRCA1 A gene that normally acts to restrain the growth of cells in the breast but which, when mutated, predisposes…
- Diurnal Occurring in the daytime. A patient may have a diurnal fever rather than a nocturnal one. Diurnal also can…