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).
Carcinoid syndrome
A tumor which secretes large amounts of the hormone serotonin. Carcinoid tumor is also called an argentaffinoma. The tumor usually arises in the gastrointestinal tract, anywhere between the stomach and the rectum (the favorite spot is in…
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Show more- Jealousy, delusional See: Othello syndrome
- Creutzfeldt-Jakob disease (CJD) Spontaneous tearing in parallel with the normal salivation of eating. The crocodile tears syndrome occurs…
- H. flu immunization This immunization is designed to prevent disease due to Haemophilus influenzae (H. flu), specifically…
- Octalox Trade name of the insecticide dieldrin. See: Aldrin and dieldrin
- E. coli O157:H7 A dangerous form of Escherichia coli, the colon bacillus, a bacterium that normally lives in the human colon…
- Aneurysm, fusiform An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an…
- Gonad, male The male gonad, the testicle (or testis), located behind the penis in a pouch of skin (the scrotum). The…
- Mead See: Mead, Margaret
- Infant water requirements Water is an important part of a baby's diet because water makes up a large proportion of the baby's body…
- Primary HIV infection The first few months after infection with HIV (the human immunodeficiency virus). During primary HIV…
- Prontosil The first sulfa drug to be discovered. Largely of historic interest today. The discovery was made by the…
- Dorsal The back or posterior side of a structure. "Dorsum" is the Latin word for the back. Something pertaining to…