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.
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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).
Xanthosis
Yellowing of the skin without yellowing of the eyes. In jaundice there is yellowing of both the skin and the whites of the eyes. Xanthosis is associated sometimes with malignancies
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Show more- Tissue plasminogen activator (tPA) An enzyme that helps dissolve clots. tPA is made by the cells lining blood vessels and has also been…
- Inversion, chromosome A chromosome segment is clipped out, turned upside down and reinserted back into the chromosome. A chromosome…
- Pleiotropic 1. Producing many effects. 2. Multiple effects from a single gene. For example, the Marfan gene is…
- Fibrosis, radiation Scarring of the lungs from radiation. Radiation fibrosis is a sequel of radiation pneumonitis (inflammation…
- Olive In neuroanatomy, a rounded oval prominence on the surface of the medulla oblongata in the brain. There are…
- Douglas, pouch of >Culdoscopy, the introduction of a viewing tube (endoscope) through the vagina into the cul-de-sac…
- Syndrome, popliteal pterygium See Popliteal web syndrome
- Positive pressure ventilation The provision of oxygen under pressure by a mechanical respirator, a machine designed to improve the exchange…
- Spitz-Holter valve A pioneering one-way valve created by John Holter to treat hydrocephalus. In 1955 Mr. Holter, , a hydraulics…
- Rat, rice See: Rice rat
- PCO disease >Irregular or no periods >Acne >Obesity, and >Excess hair growth. All women with PCO have irregular or no…
- Hallucination A profound distortion in a person's perception of reality, typically accompanied by a powerful sense of…