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).
Hair, exclamation point
Exclamation point hair is a key diagnostic finding in a disorder called alopecia areata. Alopecia areata is patchy baldness (alopecia means baldness and areata means occurring in patches) which typically begins with patchy hair loss on the…
Read the definitionRandom terms
Show more- Drain A device for removing fluid from a cavity or wound. A drain is typically a tube or wick. As a verb, to allow…
- Subway diet: The Subway diet is a weight loss plan popularized in 2004 by Jared Fogle, who claims that he lost over 245…
- Test, syphilis (RPR) Rapid plasma reagin, a blood test for syphilis that looks for an antibody that is present in the bloodstream…
- Cytology The medical and scientific study of cells. Cytology refers to a branch of pathology, the medical specialty…
- Shock, toxic See Syndrome, toxic shock.
- Nodule, Heberden A small hard fixed bump on the finger, usually at the last joint of the finger. A Heberden nodule is a…
- Evertor A muscle that turns a part toward the outside. To evert is to turn outward or turn inside out. From the Latin…
- Coccyx The small tail-like bone at the bottom of the spine very near to the anus. The coccyx is made up of 3-5…
- Base sequence analysis A method for determining the order of nucleotide bases in DNA
- Palliate To treat partially and incompletely. To palliate a diseases is to treat it partially but not cure it…
- Employment Retirement Income Security Act See: ERISA
- Aspiration pneumonia Pneumonia: Infection of the lungs due to aspiration (the sucking in of food particles or fluids into the…