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).
Pustule
A pustule is a small collection of pus in the top layer of skin (epidermis) or beneath it in the dermis. Pustules frequently form in sweat glands or hair follicles. Pus is a mixture of inflammatory cells and liquid. Put somewhat more…
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Show more- Merkle cell carcinoma A rapidly growing type of skin cancer, correctly termed Merkel cell carcinoma, after the German anatomist and…
- Borrelia A group of bacteria that are helical spirochetes of the genus Borrelia. Some species of Borrelia cause…
- Syphilis test, VDRL A blood test for syphilis (VDRL stands for Venereal Disease Research Laboratory) that detects an antibody…
- Daw Abbreviation meaning 'dispense as written.' One of a number of hallowed abbreviations of terms that have…
- Intrauterine contraceptive device (IUD) A device inserted into the uterus (womb) to prevent conception (pregnancy). The IUD can be a coil, loop…
- Reflux laryngitis Reflux laryngitis: Inflammation of the voice box (the larynx) caused by stomach acid backing up into the…
- Polio vaccine, oral A vaccine that contains live attenuated (weakened) poliovirus. Abbreviated OPV. Also referred to as polio…
- Neurological Disorders and Stroke, Nat'l Institut Of (NINDS): One of the National Institutes of Health in the U.S., the NINDS's mission is to 'support and…
- Butterfly rash Rash: A red, flat facial rash over the bridge of the nose. Over half of patients with systemic lupus…
- Needle stick See: Needlestick injury
- UL 1. Upper lid (of the eye). 2. Upper limit. No evidence was found for chronic excess intakes of potassium in…
- Cryo-EM Cryo-electron microscopy