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).
Premature baby
A baby born before 37 weeks of gestation have passed. Historically, the definition of prematurity was 2500 grams (about 5 1/2 pounds) or less at birth. The current World Health Organization definition of prematurity is a baby born before…
Read the definitionRandom terms
Show more- Pontiac fever A flu-like illness caused by the bacterium Legionella pneumophila contracted by breathing mist that comes…
- Scabies Scabies: Infestation of the skin by the human itch mite, Sarcaptes scabies. The initial symptom of scabies…
- Abiotic 1. Not associated with living organisms.2. Anything in the environment incapable of life, such as the soil or…
- Open-label trial A clinical trial in which researchers and participants know which drug or vaccine is being administered
- Micturition syncope The temporary loss of consciousness upon urinating. (Syncope is the temporary loss of consciousness or, in…
- Perspiration 1) The secretion of fluid by the sweat (sudoriferous) glands. These small, tubular glands are situated within…
- Pelvic inflammatory disease (PID) Ascending infection of the female upper genital tract (the female structures above the cervix). PID is the…
- Acquired mutation A mutation (a genetic change) acquired by a somatic cell after conception. Acquired mutations occur in…
- Dermatan sulfate An glycosaminoglycan (formerly called a mucopolysaccharide) found mostly in skin but also in blood vessels…
- Industrial health A branch of public health concerned with the health and well-being of workers. Its aims are to eliminate…
- Anovular menstruation Menstruation without ovulation. The egg stays within the ovary and usually disintegrates but sometimes it is…
- Mm Abbreviation for millimeters. For example, mm Hg means millimeters of mercury, the height of a column of…