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).
Ectoderm
One of the three primary germ cell layers (the other two being the mesoderm and endoderm) that make up the very early embryo. The ectoderm is the outermost of the three layers. It differentiates to give rise to many important tissues and…
Read the definitionRandom terms
Show more- Needle stick See: Needlestick injury
- Myelitis, transverse A disease of the spinal cord in which there is demyelination (erosion of the myelin sheath that normally…
- Lumbar puncture Lumbar puncture: A lumbar puncture or 'LP' is a procedure whereby spinal fluid is removed from the spinal…
- Socialized medicine A system of health care in which all health personnel and health facilities, including doctors and hospitals…
- Idiopathic nephrotic syndrome of childhood See: Minimal change disease
- NIDCD Stands for National Institute on Deafness and Other Communication Disorders, one of the US National…
- ATP 1. Adenosine triphosphate. 2. Acute thrombocytopenic purpura
- Pox virus See: Orthopox
- Disease names See: Disease nomenclature
- Cranial nerve, first The cranial nerves emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge…
- Supertaster A supertaster has an unusually large density of taste buds, each surrounded by pain fibers
- Atrial flutter Well-organized but overly rapid contractions of the atrium of the heart (usually at a rate of 250-350…