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).
Membrane, vaginal
A thin membrane which completely or partially occludes the vaginal opening. This fold of mucous membrane is usually present at birth at the orifice of the vagina. It is also called the hymen, a Greek word meaning 'skin' or 'membrane.' The…
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Show more- Alexia A neurological disorder characterized by loss of the ability to read or understand the written word. Alexia…
- Eyes, flashing lights in the There are a number of causes of spontaneous flashing light sensations in the eye. A sensation of flashing…
- Cranial nerve II The second cranial is the optic nerve, the nerve that connects the eye to the brain and carries the impulses…
- Cranial dystonia A term used to describe dystonia that affects the muscles of the head, face, and neck. Oromandibular dystonia…
- WFS1 A gene on the short (p) arm of chromosome 4 in band 4p16 that encodes (provides the instructions for) a…
- Rheumatism, psychogenic Rheumatism in which the patient reports inconsistent pains of muscles and joints that do not correspond to…
- Nickel A silver-white metallic element. Long-term exposure to nickel, such as from jewelry, can cause a form of…
- Intensive care unit psychosis A disorder in which patients in an intensive care unit (ICU) or a similar hospital setting may experience…
- Mercury poisoning The metallic element mercury is poisonous to humans. Mercury poisoning can occur in both acute and chronic…
- Eczema, contact A localized reaction that includes redness, itching, and burning where the skin has come into contact with an…
- PGE-2 Prostaglandin E2
- Signature 1) That part of the prescription that contains the doctor's directions to the patient. For example, the…