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).
Urine hemoglobin
The presence of free hemoglobin in the urine, an abnormal finding, that may make the urine look dark. Hemoglobin in the urine is termed hemoglobinuria. Hemoglobin is the protein in the red blood cells which carries oxygen from the lungs to…
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Show more- Philtrum The area from below the nose to the upper lip. Normally the philtrum is grooved. In fetal alcohol syndrome…
- Surgery, video-assisted Surgery that is aided by the use of a video camera that projects and enlarges the image on a television…
- Lymphatic tissue A part of the body's immune system that helps protect it from bacteria and other foreign entities. Lymphatic…
- Cluster In epidemiology, an aggregation of cases of a disease or another health-related condition, such as a cancer…
- Typhus, rat-flea See Typhus, murine
- Pneumocystis pneumonia One of the cells lining the alveoli (the air sacs) in the lung. The alveoli are, in fact, lined with two…
- Idiot savant See: Autistic savant. The term 'autistic savant' is preferred to the old term 'idiot savant' as less…
- EGFR Epidermal growth factor receptor. A protein found on the surface of cells to which epidermal growth factor…
- Pool, gene The sum total of genes, with all their variations, possessed by a particular species at a particular time…
- Expressed sequence tag (EST) A unique stretch of DNA within a coding region of a gene that is useful for identifying full-length genes and…
- Contusion Another name for a bruise. What is a bruise ? A bruise, or contusion, is caused when blood vessels are…
- Node, AV AV node: The AV node (AV stands for atrioventricular) is an electrical relay station between the atria (the…