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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Fear of demons
S (demons): An abnormal and persistent fear of evil supernatural beings in persons who believe such beings exist and roam freely to cause harm. Those who suffer from this phobia realize their fear is excessive or irrational. Nevertheless…
Read the definitionRandom terms
Show more- Nasal septum perforation A hole in the nasal septum, the wall inside the nose that runs down the middle dividing it into two sides…
- Completely-in-the-canal hearing aid The smallest and most discreet of the common styles of hearing instruments. Completely-in-the-canal (CIC)…
- Parathyroid insufficiency See: Hypoparathyroidism
- Nail In medicine, there are two types of nails. One is just a plain old metal nail used to hold 2 or more pieces…
- Y. pestis Yersinia pestis, the bacteria that causes the bubonic plague which in the year 541 (as the Black Death) and…
- Doxycycline Doxycycline: Brand name: Vibramycin. A synthetic broad-spectrum antibiotic derived from tetracycline…
- Antibiotic resistance Antibiotic resistance: The ability of bacteria and other microorganisms to withstand an antibiotic to which…
- AFAP Attenuated familial adenomatous polyposis
- Cancer Institute, National The National Cancer Institute (NCI) is one of the National Institutes of Health (NIH) in the U.S. The mission…
- TIA See Transient ischemic attack
- Gluteus maximus The greatest gluteal muscle and the biggest muscle in the human body. The gluteus maximus forms the bulk of…
- Leukemoid reaction A benign condition in which the high number of white blood cells found in a blood test resembles the numbers…