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).
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 serves as a landmark for mapping. An EST is a sequence tagged site (STS) derived from cDNA. An STS is a short segment of DNA…
Read the definitionRandom terms
Show more- Glucose Glucose: The simple sugar (monosaccharide) that serves as the chief source of energy in the body. Glucose is…
- Newborn hearing screen Testing of the newborn baby's ability to hear. Newborn screening of hearing is done with automated auditory…
- Landau-Kleffner syndrome Landau-Kleffner syndrome: A disorder with seizures starting in childhood in which the patient loses skills…
- Carotid artery A key artery located in the front of the neck though which blood from the heart goes to the brain. There are…
- Hereditary prostate cancer Prostate cancer: A genetic form of prostate cancer. The risk of prostate cancer is clearly genetic. Men with…
- Y-linkage The presence of a gene on the Y chromosome. Y-linkage is analogous to X-linkage (the presence of a gene on…
- Beriberi, infantile See: Infantile beriberi
- Q.2h On a prescription, every two hours
- Antidote An agent that counteracts a poison and neutralizes its effects. A chemical antidote is a substance that…
- Alpha error The statistical error (said to be 'of the first kind' or type I) made in testing an hypothesis when it is…
- Replication A turning back, repetition, duplication, reproduction
- Smallpox vaccination of fetus See Congenital vaccinia