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).
Poison
Any substance that can cause severe distress or death if ingested, breathed in, or absorbed through the skin. Many substances that normally cause no problems, including water and most vitamins, can be poisonous if taken in too large of a…
Read the definitionRandom terms
Show more- Cryptitis A term that is used to describe one of the abnormalities that is seen under the microscope when small…
- Dialysis, peritoneal Dialysis, peritoneal: Technique that uses the patient's own body tissues inside of the belly (abdominal…
- Ankylose To undergo ankylosis (stiffening or fusion of a joint)
- Memory, explicit See: Explicit memory
- White subungual onychomycosis, proximal The rarest form of fungus infection of the finger or toenail. (Fungus infection of the finger or toenail is…
- Japanese encephalitis A mosquito-borne viral infection, the leading cause of viral encephalitis in Asia. Japanese encephalitis…
- Obesity, gynecoid >Gynecoid pelvis: A pelvis that is shaped like a woman's. >Gynecology: The study of the diseases of the…
- Tobacco A South American herb, formally known as Nicotiana tabacum, whose leaves contain 2-8% nicotine and serve as…
- Hyposmia A reduced ability to smell and to detect odors. Some people have anosmia and can detect no odors
- Osteitis fibrosa cystica A condition associated with hyperparathyroidism in which bone tissue is gradually replaced by cysts and fibers
- PEF Peak expiratory flow
- Illness, acute An illness with an abrupt onset and usually a short course