MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Plan B
Brand name for a progestin-only emergency contraceptive designed to prevent pregnancy within 72 hours after a contraceptive accident or unprotected sex. However, early treatment is significantly more effective. Each 12 hours of delay in…
Read the definitionRandom terms
Show more- HIB This immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria…
- Tear gland The gland that makes tears. An abnormality of the tear glands can impair the production of the tears and lead…
- Agent, anti-infective Something capable of acting against infection, by inhibiting the spread of an infectious agent or by killing…
- Helmet, bicycle A well-known but often neglected device designed to protect the head of a bicyclist. Helmets decrease the…
- Battered child syndrome A disease in which children are physically abused. The battered child syndrome is a form of child abuse. Not…
- Joint hypermobility syndrome A common benign childhood condition involving hypermobile joints (that can move beyond the normal range of…
- Canine heartworm Dirofilaria immitis. See: Heartworm
- Skin biopsy Skin biopsy: Removal of a piece of skin for the purpose of further examination in the laboratory using a…
- Evacuation supplies kit Endovascular aneurysm repair. A procedure to repair an aneurysm of the aorta. In EVAR a stent is placed in…
- Neutrophil A type of white blood cell, specifically a form of granulocyte, filled with neutrally-staining granules, tiny…
- Facultative heterochromatin Chromosome material that can be either heterochromatin or euchromatin. The inactive X chromosome is made up…
- Sexagenarian Someone in his or her sixties. See also: Age by decade