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).
Involuntary
Done other than in accordance with the conscious will of the individual. The opposite of voluntary. The terms 'voluntary' and 'involuntary' apply to the human nervous system and its control over muscles. The nervous system is divided into…
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Show more- Human T-lymphotropic virus type III An obsolete term for the human immunodeficiency virus, now commonly called HIV
- LaCrosse encephalitis Enzyme that breaks down the milk sugar lactose into glucose and galactose. Persons with a deficiency of…
- National Coalition for Cancer Survivorship A survivor-led advocacy group that works on behalf of the millions of cancer survivors and the millions more…
- Disease, Pelizaeus-Merzbacher See: Polycystic ovarian syndrome.
- AAD American Association of Dermatology, one of many important professional societies in the health arena. The…
- Test, RPR Rapid plasma reagin, a blood test for syphilis that looks for an antibody that is present in the bloodstream…
- Hypermnesia Abnormally strong memory of the past. As compared to hypomnesia and amnesia. From hyper- + the Greek mneme…
- Fourth cranial nerve The fourth cranial nerve, the trochlear nerve, is the nerve supply to the superior oblique muscle of the eye…
- Vasculitis, retinal Vasculitis, retinal: The retina is the portion of the eye that contains the nerves of sensation that perceive…
- Xanthoma, eruptive See: Eruptive xanthoma
- Prematurity Historically, the definition of prematurity was 2500 grams (about 5 1/2 pounds) or less at birth. The current…
- Bulbourethral gland Also called Cowper's gland. A pea-sized gland in the male located behind and to the side of the urethra that…