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).
Aristolochic acid
A chemical found in nature in the plant Aristolochia fangchi. Aristolochic acid is contained in a number of botanical products sold as 'traditional medicines' or as dietary supplements or weight-loss remedies. The use of products…
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Show more- Vulvar vestibulitis Inflammation of small glands at the entrance to the vagina. Vulvar vestibulitis is the most common physical…
- Tuberculosis vaccination A vaccination for tuberculosis (TB). The vaccine, known as BCG (bacille Calmette Guerin), is used in most…
- Anterior pituitary The front portion of the pituitary, a small gland in the head called the master gland. Hormones secreted by…
- Map, physical A map of the locations of identifiable landmarks on chromosomes. Physical distance is measured in base pairs…
- Enzyme, restriction An enzyme from bacteria that can recognize specific base sequences in DNA and cut the DNA at that site (the…
- Hematologist A physician who is specially trained in the diagnosis, treatment, and prevention of diseases of the blood and…
- Virus, Ebola A notoriously deadly virus that causes fearsome symptoms, the most prominent being high fever and massive…
- Pulmonary artery One of the two vessels which are formed as terminal branches of the pulmonary trunk and convey unaerated…
- Subarachnoid hemorrhage Bleeding within the head into the space between two membranes that surround the brain. The bleeding is…
- Macrophage inhibitory cytokine 1 See: MIC-1
- Cholangiogram, IV See: Intravenous cholangiogram
- Transcription factor A protein that controls when genes are switched on or off -- whether genes are transcribed or not…