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).
Cluster headache
Headache: A distinctive syndrome of headaches, also known as migrainous neuralgia. There are two main clinical patterns of cluster headache -- the episodic and the chronic: > >Episodic: This is the most common pattern of cluster headache…
Read the definitionRandom terms
Show more- Agency for Toxic Substances and Disease Registry An agency of the U.S. Department of Health and Human Services under the Public Health Service that works with…
- Premature birth A birth that takes place before 37 weeks of gestation have passed. Historically, the definition of…
- Paternal 1. Pertaining to the father as, for example, a paternal age effect.2. Related through the father as, for…
- Recrudescence Reappearance of a disease after it has been quiescent. A new outbreak or the return of a disease. As, for…
- Shunt, transjugular intrahepatic portosystemic A shunt that allows blood from the portal circulation (that supplies the liver) to flow into the systemic…
- Thymus and parathyroids, hypoplasia of See: DiGeorge syndrome
- Urologist A physician who specializes in diseases of the urinary organs in females and the urinary tract and sex organs…
- Hemihyperhidrosis Hyperhidrosis (excess sweating) confined to one side of the body. Hemihyperhidrosis may occur after a stroke
- Lactobacillus acidophilus The bacteria found in milk and fermented milk products, particularly yogurt with 'live cultures' of L…
- Epinephrine A substance produced by the medulla (inside) of the adrenal gland. The name epinephrine was coined in 1898 by…
- Bag, air A bag that fills with air, designed for frontal impact crashes, the kind of crashes which account for more…
- Serratus posterior inferior One of the serratus muscles of the back and thorax. The serratus posterior inferior muscle originates…