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).
Sudden Infant Death Syndrome (SIDS)
Sudden Infant Death Syndrome (SIDS): The sudden and unexpected death of a baby with no known illness, typically affecting sleeping infants between the ages of two weeks to six months. Infants with a brother or sister who died of SIDS…
Read the definitionRandom terms
Show more- Diagnosis, differential The process of weighing the probability of one disease versus that of other diseases possibly accounting for…
- Quadriplegic Pertaining to quadriplegia (paralysis of all four limbs -- both arms and both legs), as from a high spinal…
- Mitochondrion Singular of mitochondria. The mitochondria are normal structures called organelles in cells. They are located…
- Spinal stenosis Narrowing of the spaces in the spine, resulting in compression of the nerve roots or spinal cord by bony…
- Dyad The word 'dyad' comes from the Greek 'dyas' meaning the number two. In psychology, a dyad refers to a pair of…
- Nasal prosthesis An artificial device to replace part or all of a missing nose
- Talipes Clubfoot. The Latin word talipes was compounded from talus (ankle) + pes (foot) since, with the common…
- Aneurysm, dissecting An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an…
- Policy, Medigap See: Medigap policy>
- Sleep, REM Sleep, REM: REM sleep is the portion of sleep when there are rapid eye movements (REMs). Dreams occur during…
- Neonatal Pertaining to the newborn period which, by convention, is the first four weeks after birth.
- Saccular aneurysm An aneurysm that resembles a small sack. A berry aneurysm is typically saccular. An aneurysm is a localized…