MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Hemoglobin
Hemoglobin: The oxygen-carrying pigment and predominant protein in the red blood cells. Hemoglobin forms an unstable, reversible bond with oxygen. In its oxygenated state it is called oxyhemoglobin and is bright red. In the reduced state…
Read the definitionRandom terms
Show more- Therapeutic Relating to therapeutics, that part of medicine concerned specifically with the treatment of disease. The…
- Carcinogenic Causing cancer or contributing to the causation of cancer. Pertaining to a carcinogen
- Colon cancer Colon cancer: A malignancy that arises from the inner lining of the colon. Most, if not all, of these cancers…
- Intercellular junction A specialized region of connection between two cells
- Radioactive tracer A radioactive molecule that can be sent through the body's circulatory or urinary system, with its progress…
- Alstrom-Hallgren syndrome See: Alstrom syndrome
- Quinsy Not a TV detective but an old word for a peritonsillar abscess. Whether you call it quinsy or a peritonsillar…
- Photosensitivity In medicine, increased sensitivity of the skin to light and other sources of UV.Photosensitivity commonly…
- Yellow fever vaccination A live attenuated (weakened) viral vaccine that is recommended for people traveling to or living in tropical…
- Mouth, dry See: Dry mouth
- Heterophyes The replacement of normal tissue of the body by abnormal tissue or by malpositioned normal tissue, a tissue…
- Psoriasis vulgaris The medical name for the most common form of psoriasis ('vulgaris' means common). About 80% of people with…