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.
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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).
Hyperaldosteronism
Overproduction of the hormone aldosterone from the outer portion (cortex) of the adrenal gland or a tumor containing that type of tissue. Excess aldosterone (pronounced al-do-ster-one) results in low potassium levels (hypokalemia)…
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Show more- DNA repair gene A gene engaged in DNA repair. When a DNA repair gene is impaired, mutations pile up throughout the DNA. The…
- Chorionic villus sampling Chorionic villus sampling: A procedure for first-trimester prenatal diagnosis. Chorionic villus sampling may…
- Fecund Fruitful, abundantly fertile. Just as a writer is prolific, a woman may be fecund, able to reproduce…
- Startle disease A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Disease, startle A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Tube, swallowing See: Swallowing tube
- Crotch A nonmedical term in common usage for the region where the legs come together, the place where the lower…
- Onset In medicine, the first appearance of the signs or symptoms of an illness as, for example, the onset of…
- HHV-5 Human herpesvirus 5. See cytomegalovirus.
- Numbness (Numb) Coin-shaped patches of irritated skin-most common on the arms, back, buttocks, and lower legs that may be…
- Omphalos The omphalos (or omphalus) is also called the umbilicus or navel. 'Omphalos' is the Greek word for the navel…
- Whooping cough Also known as pertussis, this is a feared infectious disease that can strike the respiratory system and…