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).
Renal pelvis
The area at the center of the kidney. Urine collects here and is funneled into the ureter
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Show more- Necrosis The death of living cells or tissues. Necrosis can be due, for example, to ischemia (lack of blood flow)…
- Daughter 1. A female offspring. 2. A female adopted child. 3. A product of radioactive decay. 4. A cell resulting from…
- Endemic Present in a community at all times but in relatively low frequency. Something that is endemic is typically…
- Rapid eye movement sleep Sleep: Rapid eye movement sleep (REM) sleep is the portion of sleep when there are rapid eye movements…
- Ataxia-telangiectasia A progressive neurodegenerative genetic disease characterized by cerebellar ataxia (incoordination and lack…
- Congenital stationary night blindness An inherited eye disorder that is not progressive ('stationary') and principally affects the rod…
- Tympanic 1. Pertaining to the tympanum (the eardrum).2. Pertaining to the tympanic cavity.3. Bell-like or resonant
- FMO3 Abbreviation for the enzyme, flavin-containing monooxygenase-3. See Fish-odor syndrome
- Hypogonadism A condition in which decreased production of gonadal hormones leads to below-normal function of the gonads…
- Internal genitalia, male See: Male internal genitalia
- National Center for Research Resources (NCRR) One of the Centers of the National Institutes of Health, whose mission is to 'advance biomedical research and…
- Erythroplakia A reddened patch with a velvety surface found in the mouth