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).
Pericardium
The conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels. The pericardium's outer coat (the parietal pericardium) is tough and thickened, loosely cloaks the heart, and is attached to the central…
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Show more- Acanthosis nigricans A skin condition characterized by dark thickened velvety patches, especially in the folds of skin in the…
- Patellar Pertaining to the patella, the kneecap by another name, the familiar small bone planted in the front of the…
- Lissencephaly A brain malformation characterized by microcephaly and the lack of normal convolutions (folds) in the brain…
- Macrocytic 1. Any abnormally large cell. The opposite of macrocytic is microcytic (an abnormally small cell). 2. An…
- Sicca syndrome An autoimmune disease, also known as Sjogren syndrome, that classically combines dry eyes, dry mouth, and…
- Dextroposition Move to the right
- BCM Body cell mass
- URI Commonly used abbreviation for Upper Respiratory Infection, an infection in the respiratory tract shy of the…
- Liver of pregnancy, acute fatty Liver failure in late pregnancy, usually from unknown cause. Acute fatty liver of pregnancy (AFLP) typically…
- Paraneoplastic syndrome The collective signs and symptoms caused by a substance emanating from a tumor or in reaction to a tumor…
- Vaginal yeast infection Infection of the vagina caused by a fungus known as Candida. A yeast vaginal infection is characterized by…
- Vein, internal jugular The deeper of the two jugular veins in the neck that drain blood from the head, brain, face and neck and…