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).
Crib death
The sudden and unexpected death of a baby with no known illness, typically affecting infants from 2 weeks to 6 months of age while sleeping. Crib death is now called Sudden Infant Death Syndrome (SIDS). Babies at an increased risk for SIDS…
Read the definitionRandom terms
Show more- Alstrom-Hallgren syndrome See: Alstrom syndrome
- Agranulocytosis A marked decrease in the number of granulocytes. Granulocytes are a type of white blood cell filled with…
- Spontaneous abortion A miscarriage, that is, any pregnancy that is not viable (the fetus cannot survive) or in which the fetus is…
- Endocrinology The study of hormones, their receptors, the intracellular signalling pathways they invoke, and the diseases…
- Anorexic 1. Pertaining to anorexia, lack of appetite.2. A drug or other agent that causes anorexia and so diminishes…
- Parainfluenza A disease due to an acute respiratory infection caused by a parainfluenza virus. Parinfluenza occurs usually…
- Clinical investigator A medical researcher who carries out a clinical trial or another type of clinical research
- Pregnancy, extrauterine A pregnancy that is not in the usual place and is located outside the inner lining of the uterus. A…
- Binocular 1. With both eyes, as in binocular vision.2. With two eyepieces, as in a binocular microscope
- Patent ductus arteriosus Failure for the ductus arteriosus, an arterial shunt in fetal life, to close on schedule. Before birth, blood…
- Premenstrual syndrome Premenstrual syndrome: A combination of physical and mood disturbances that occur in the last half of a…
- Peri- Prefix meaning around or about. For example, pericardial is around the heart, and periaortic lymph nodes are…