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).
Syphilis, tertiary
The third stage of syphilis, in which the syphilis spirochetes infect the brain and other organs of the body. Dementia is a common outcome. Tertiary syphilis can develop many years after an initial untreated infection. The spirochetes can…
Read the definitionRandom terms
Show more- Cyclopia A congenital abnormality (birth defect) in which there is only one eye. That eye is centrally placed in the…
- Arthroscopic Refers to a surgical technique whereby a doctor inserts a tube-like instrument into a joint to inspect…
- Achondrogenesis, Langer-Saldino type See: Achondrogenesis type II
- Bovine genome The genome of the cow (Bos taurus). The bovine genome is similar in size to the genomes of humans and other…
- Placenta, low Location of the placenta in the lower part of the uterus (womb) so that the placenta partially or completely…
- Involution 1. Literally, a turning inward or rolling inward.2. A decrease in size, usually after an increase. The uterus…
- Radiography Film records (radiographs) of internal structures of the body. Radiography is made possible by X-rays (or…
- Immunization, MMR The standard vaccine given to prevent measles, mumps and rubella (German measles). The MMR vaccine is now…
- DNS On a prescription, Do Not Substitute. If a physician orders a particular drug and writes DNS on the…
- Case-fatality percentage See: Case-fatality proportion
- Infant mortality rate The number of children dying under a year of age divided by the number of live births that year. The infant…
- American College of Nurse-Midwives See: Nurse-midwife