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).
H
Symbol for hydrogen
Read the definitionRandom terms
Show more- Incubation period In medicine, the time from the moment of exposure to an infectious agent until signs and symptoms of the…
- Hirudotherapy The use of leeches for medical therapy. Sometimes referred to as the 'treatment that sucks.' From hirudin…
- Disease, subclinical An illness that stays below the surface of clinical detection. A subclinical disease has no recognizable…
- Tattoos & permanent makeup The intradermal application of inks for the purpose of tattooing or permanent makeup (also known as…
- Morton's foot See: Morton's neuroma
- Sixth disease A viral disease of infants and young children with sudden onset of high fever which lasts several days and…
- Longitudinal The word come from the Latin longitudo meaning length. Hence, longitudinal means along the length, running…
- Teratogen Any agent that can disturb the development of an embryo or fetus. Teratogens may cause a birth defect in the…
- Provigil Brand name of the drug modafinil. See: Modafinil
- Accessory nerve The eleventh cranial nerve, which emerges from the skull and receives an additional (accessory) root from the…
- Medical history 1. In clinical medicine, the patient's past and present which may contain clues bearing on their health past…
- Barium enema x-ray See: Lower GI series