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).
Tap, spinal
Also known as a lumbar puncture or 'LP', a spinal tap is a procedure whereby spinal fluid is removed from the spinal canal for the purpose of diagnostic testing. It is particularly helpful in the diagnosis of inflammatory diseases of the…
Read the definitionRandom terms
Show more- Pneumothorax Pneumothorax: Free air in the chest outside the lung. Pneumothorax can occur spontaneously ('out of the…
- Phantom vision Seeing images after total loss of eyesight
- CT colography See: Virtual colonoscopy
- Extremophile An organism that lives under extreme conditions. An example of an extremophile is Methanococcus jannaschii, a…
- Haemophilus influenzae type B (HIB) immunization This kind of immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a…
- Epidural anesthetic An anesthetic agent injected into the epidural space, the space outside the dura -- the outermost, toughest…
- Nuclei The plural of nucleus
- Thallium Thallium: A metallic element having the symbol Tl and the atomic number 81 and an atomic weight of about 204…
- Liquid nitrogen Nitrogen in a liquid state. Liquid nitrogen is supercool -- about 200 degrees Celsius (320 degrees…
- Infection, Neisseria An infection acquired in a hospital. Specifically an infection that was not present or incubating prior to…
- Hydrocephalus, Macewen sign of A sign to detect hydrocephalus (and brain abscess). Percussion (tapping) on the skull at a particular spot…
- Inferolateral Below and to one side. Both inferior and lateral. In anatomy, there are many such compound terms. For a more…