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).
Acrophobia
An abnormally excessive and persistent fear of heights. Sufferers experience severe anxiety even though they usually realize that, as a rule, heights pose no real threat to them. Derived from the Greek 'acron', height + 'phobos', fear.
Read the definitionRandom terms
Show more- Anticholinergic The action of certain medications that inhibit the transmission of parasympathetic nerve impulses and thereby…
- Cyclin D A family of three closely related proteins termed cyclin D1, D2 and D3 that are expressed in an overlapping…
- Ehlers-Danlos syndrome See: Ehlers-Danlos syndrome, dermatosparaxis type.
- Hyperaldosteronism Overproduction of the hormone aldosterone from the outer portion (cortex) of the adrenal gland or a tumor…
- Mansfield See: Mansfield, Peter
- Vaccinia, disseminated See Progressive vaccinia
- Mordant A substance capable of deepening the reaction to a stain (as in the pathology laboratory); incisive; burning…
- Myotonic dystrophy type 2 An inherited disorder of the muscles and other body systems characterized by progressive muscle weakness…
- Study, stomach emptying Also called a gastric emptying study, this test evaluates the emptying of food from the stomach. For a…
- SEER program The Surveillance, Epidemiology, and End Results (SEER) program of the National Cancer Institute (NCI), an…
- Vaccination, Haemophilus influenzae type B (HIB) Immunization designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria…
- Familial hypercholesterolemia The most common inherited type of hyperlipidemia (high lipid levels in blood). One in every 500 children is…