MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Nerve, first cranial
The first cranial nerve is the olfactory nerve, the nerve that carries impulses for the sense of smell from the nose to the brain. The cranial nerves emerge from or enter the skull (the cranium), as opposed to the spinal nerves which…
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Show more- Shunt 1) To move a body fluid, such as cerebrospinal fluid, from one place to another. 2) A catheter (tube) that…
- Facultative heterochromatin Chromosome material that can be either heterochromatin or euchromatin. The inactive X chromosome is made up…
- Hayfever Hay fever is, always has been, and ever shall be two separate words. See: Hay fever
- Enuresis Involuntary urination, which may be caused by a variety of factors. These include disorders of the kidneys…
- Streptococcus pyogenes A common bacteria of the skin that causes strep throat (streptococcal pharyngitis), impetigo, other skin…
- Bernstein test A test to find out if heartburn is caused by acid in the esophagus and so to diagnose GERD (gastroesophageal…
- Serotonin A hormone, also called 5-hydroxytryptamine, in the pineal gland, blood platelets, the digestive tract, and…
- Acute illness A disease with an abrupt onset and usually a short course
- Dental braces (orthodontics) Dental braces (orthodontics): The use of devices to move teeth or adjust underlying bone. The ideal age for…
- Scrub typhus A mite-borne infectious disease caused by a microorganism, Rickettsia tsutsugamushi, characteristically with…
- Dysphonia See: Spasmodic dysphonia.
- Mask, oxygen A mask that covers the mouth and nose, and is hooked up to an oxygen tank. It delivers oxygen directly to the…