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).
Itch, ocean
An intensely itchy rash due to contact with the tiny thimble jellyfish (Linuche unguiculata). These jellyfish are common between March and August in the waters off of Florida and in the Gulf of Mexico and the Caribbean Sea. There may be no…
Read the definitionRandom terms
Show more- Congenital webbed neck syndrome See: Klippel-Feil sequence
- Beta error The statistical error (said to be 'of the second kind' or type II) made in testing when it is concluded that…
- Knee The knee is a joint which has three parts. The thigh bone (the femur) meets the large shin bone (the tibia)…
- Leukemia, hairy-cell See: Hairy cell leukemia
- Opisthotonos A great rigid spasm of the body with the back fully arched and the heels and head bent back. Opisthotonos…
- Vitiligo Vitiligo: Pronounced vit-uh-LIE- go. A condition in which the skin turns white due to the loss of…
- Cyanotic Showing cyanosis (bluish discoloration of the skin and mucous membranes due to not enough oxygen in the…
- Q in population genetics The frequency of the less common of two different alternative (allelic) versions of a gene. (The frequency of…
- Line, central venous A catheter (tube) that is passed through a vein to end up in the thoracic (chest) portion of the vena cava…
- DGS See: DiGeorge syndrome
- Natural killer cell A cell that can react against and destroy another cell without prior sensitization to it. Natural killer (NK)…
- Syndrome, Wolfram See: Wolfram syndrome