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).
Disease, Tsutsugamushi
Scrub typhus, a mite-borne infectious disease caused by a microorganism, Rickettsia tsutsugamushi, characteristically with fever, headache, a raised (macular) rash, swollen glands (lymphadenopathy) and a dark crusted ulcer (called an…
Read the definitionRandom terms
Show more- Dilation, pupil (test) This examination enables your eye care professional to see more of your retina, the light-sensitive layer of…
- Lesbianism Female homosexuality. Also called sapphism (after the lesbian poet Sappho)
- Myocardial infarction, acute See: Acute myocardial infarction
- Fiber Fiber: The parts of plants that cannot be digested, namely complex carbohydrates. Also known as bulk or…
- Cervicectomy Surgical removal of the cervix, the lower portion of the uterus that protrudes into the vagina. Cervicectomy…
- Deficiency, lactase Not enough of an enzyme called lactase in the small intestine to digest lactose, a prominent component of…
- Clark level of invasion A method for determining the prognosis (outlook) with melanoma. The method was devised by the pathologist…
- Stone, renal A stone in the kidney (or lower down in the urinary tract). Also called a kidney stone. Renal stones are a…
- Amastia A rare condition wherein the normal growth of the breast or nipple does not occur. Unilateral amastia (just…
- Sleep, REM Sleep, REM: REM sleep is the portion of sleep when there are rapid eye movements (REMs). Dreams occur during…
- Positive end-expiratory pressure The provision of oxygen under pressure by a mechanical respirator, a machine designed to improve the exchange…
- Motor neuron A neuron that sends electrical output signals to muscle neurons. Also called a motoneuron