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).
Prospective study
A study in which the subjects are identified and then followed forward in time
Read the definitionRandom terms
Show more- Sleep talking NREM (non-rapid eye movement) sleep is dreamless sleep. During NREM, the brain waves on the…
- Dislocation of the radial head See: Nursemaid's elbow
- Tympano- Prefix indicating a relationship to the ear drum (tympanum). For example, tympanometry is a test that…
- Diarrhea, rotavirus Diarrhea, rotavirus: A leading cause of severe winter diarrhea in infants and young children. Each year…
- Particle, alpha A tiny mass of material composed of two protons and two neutrons. Alpha particles do not travel very far from…
- Y sex-determining region A region on the Y chromosome that determines the sex of the individual. This region goes by the symbol SRY…
- Psychosis In the general sense, a mental illness that markedly interferes with a person's capacity to meet life's…
- Adult primary liver cancer A tumor in which the cancer starts during adulthood in cells in the liver. Also called hepatocellular…
- Graft Healthy skin, bone, or other tissue taken from one part of the body to replace diseased or injured tissue…
- Bulbourethral gland Also called Cowper's gland. A pea-sized gland in the male located behind and to the side of the urethra that…
- Centenarian Someone who is 100 or more years old. Someone 110 years old and over (no upper limit) may also be referred to…
- Radium The celebrated radioactive element discovered by Marie and Pierre Curie in 1898