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).
Sleep, rapid eye movement
Sleep, rapid eye movement: REM sleep is the portion of sleep when there are rapid eye movements (REMs). Dreams occur during REM sleep. We typically have 3 to 5 periods of REM sleep per night. They occur at intervals of 1-2 hours and are…
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Show more- Placebo-controlled A term used to describe a method of research in which an inactive substance (a placebo) is given to one group…
- Methylenedioxymethamphetamine 3-4 methylenedioxymethamphetamine (MDMA), best known on the street as 'Ecstacy.' An illicit drug, considered…
- Carminative An agent that prevents or relieves flatulence (gas in the gastrointestinal tract) and, in infants, may help…
- Clinical cytogenetics The application of chromosome studies to clinical medicine. For example, clinical cytogenetic testing is done…
- Colitis, mucus A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility)…
- Non-small cell lung cancer Lung cancer: Cancer of the lung which is not of the small cell carcinoma (oat cell carcinoma) type. The term…
- Human parainfluenza virus One in a group of four RNA viruses that rank second only to respiratory syncytial virus (RSV) as a common…
- Orgasmic inhibition See: Anorgasmia
- Pheresis Procedure in which the blood is filtered, separated, and a portion retained, with the remainder being…
- Pleiotropic cytokine Cytokine that affects the activity of multiple cell types. A cytokine is a small protein that has a specific…
- Soper, Fred L. (1893-1977) American physician, epidemiologist and public health administrator. Soper won a Lasker Award in…
- Sandhoff disease A genetic disorder with symptoms that are very similar to those of Tay-Sachs disease (TSD) and that is…