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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Rectal cancer
Cancer: A malignant tumor arising from the inner wall of the final part of the large intestine -- the rectum. Although colon cancer and rectal cancer share many features, there are important differences between these two diseases…
Read the definitionRandom terms
Show more- Callus 1. A localized firm thickening of the upper layer of skin as a result of repetitive friction. A callus on the…
- Disease, Quincke's This is angioneurotic edema (or angioedema), a form of localized swelling of the deeper layers of the skin…
- Epidermal Pertaining to the epidermis, the outermost layer of the skin
- Clitoral Pertaining to the clitoris, the small elongated erectile body in the female homologous with the penis in the…
- DM1 Type 1 myotonic dystrophy. See: Myotonic dystrophy
- Sydenham, Thomas (1624-1689) Great English physician who has been called the 'English Hippocrates' and the 'father of English…
- Beta-agonist A bronchodilator medicine that opens the airways by relaxing the muscles around the airways that may tighten…
- Hip replacement, total Hip replacement, total: Surgery in which the diseased ball and socket of the hip joint are completely removed…
- Womb cancer See: Uterine cancer
- LN2 Liquid nitrogen
- Talc A very soft, soapy-feeling mineral that is a silicate of magnesium, sometimes with small amounts of aluminum…
- Asp Aspartic acid. See also: Amino acid symbols