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).
Attenuated virus
To attenuate is to weaken or to make (or become) thin. The word derives from a combination of the Latin prefix 'ad-,' meaning 'to' or 'toward,' and 'tenuis,' meaning 'thin.' The use of 'attenuate' in medicine is not new. In the 16th…
Read the definitionRandom terms
Show more- Foramen of Magendie An opening from the fourth ventricle, which is one in a system of four communicating cavities called…
- Shoulder bursitis Shoulder bursitis: Inflammation of one or both of the two major bursae (fluid-filled sacs) in the shoulder…
- Elbow, tennis A painful injury to the tendon that is attached to the outer part of the elbow due to repetitive twisting of…
- SPF Protection factor): A number on a scale for rating sunscreens. SPF stands for Sun Protection Factor. SPF…
- Congenital retraction syndrome See: Duane syndrome
- Cholangitis, primary sclerosing See: Primary sclerosing cholangitis
- Stein-Leventhal syndrome A hormonal problem that causes women to have various symptoms, including irregular or no menstruation, acne…
- Barr body A microscopic feature of female cells due to the presence of two X chromosomes in the female. One of these X…
- Appendix testis A small solid projection of tissue on the outer surface of the testis which is a remnant of the embryologic…
- Phytonutrient The active health-protecting Currently, the terms 'phytonutrient' and 'phytochemical' are being used…
- Counselor, genetic A health professional with a specialized graduate degree and experience in the areas of medical genetics and…
- Immunization, DT DT (diphtheria and tetanus) vaccine does not protect from pertussis and is usually reserved for individuals…