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).
Peak expiratory flow
Abbreviated PEF. The maximum airflow during a forced expiration beginning with the lungs fully inflated. The PEF is reduced in proportion to the severity of the airway obstruction, as in asthma and COPD (chronic obstructive pulmonary…
Read the definitionRandom terms
Show more- Coryza A cold in the head. The word 'coryza' came from the Greek 'koryza' which is thought to have been compounded…
- Mite A tiny eight-legged creature belonging to the Order Acarina related to spiders and ticks. Some mites live…
- Juxtaposition The prefix 'juxta-' comes from the Latin preposition meaning near, nearby, close. Juxtaposition is thus the…
- Islet cell tumor See: Islet cell cancer
- Hypercholesterolemia High blood cholesterol. This can be sporadic (with no family history) or familial. Familial…
- Pee An informal term for piss, meant to lessen its vulgarity, but synonymous with it
- Learning problem See: Learning disability
- Otitis media, acute See: Acute otitis media
- Microphthalmia An abnormally small eye, a congenital malformation (birth defect) of the globe. The related term…
- Pseudomonas cepacia Bacterium now known as Burkholderia cepacia. See: Burkholderia cepacia
- Cryophobia An abnormal and persistent fear of cold, including cold weather and cold objects. Sufferers from cryophobia…
- Pelvis, female See: Female pelvis