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).
Plague, Great
The 'Great Plague' that swept London in 1665 was probably not really the plague but rather typhus. The plague is a highly contagious, infectious, virulent, devastating disease due to a bacteria called Yersinia pestis which mainly infects…
Read the definitionRandom terms
Show more- Hypovolemic Referring to hypovolemia, an abnormal decrease in blood volume. As, for example, hypovolemic shock
- Causalgia Intense burning pain and sensitivity to the slightest vibration or touch, usually in the hand or foot, at a…
- Brainerd diarrhea A syndrome characterized by the acute onset of watery nonbloody diarrhea (3 or more loose stools per day)…
- Monozygous twins Twin: Identical twins that originate from a single fertilized egg (a zygote)
- Gene, housekeeping See: Housekeeping gene
- Gland, endocrine See: Endocrine gland
- Low-grade lymphoma A lymphoma that tends to grow and spread slowly, in contrast to an intermediate- or high-grade lymphoma which…
- Bunion A bunion is a localized painful swelling at the base of the big toe (the great toe). The joint is enlarged…
- Arteriovenous malformation (AVM) A serious disease characterized by inflammation of the walls of the blood vessels (vasculitis). The vessels…
- Primary immunodeficiency disease A disorder caused by an inherited flaw in the immune system that increases the susceptibility to infections…
- Virus, lymphadenopathy Another name for the human immunodeficiency virus (HIV), the cause of AIDS. Please see: Virus, human…
- Amenia Better known as amenorrhea, amenia is the absence or cessation of menstruation. Amenorrhea is conventionally…