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).
Two-animal rule
A rule instituted by the US Food and Drug Administration (FDA) for the licensing of agents directed against diseases of low or no incidence. The two-animal rule states that, when agents such as an antibiotic or vaccine are needed for such…
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Show more- Percutaneous umbilical blood sampling (PUBS) In PUBS, a needle is inserted through the mother's abdominal wall and the uterine wall. Blood can be…
- CNS (central nervous system) That part of the nervous system that consists of the brain and spinal cord. The central nervous system (CNS)…
- Blepharophimosis Horizontal narrowing of the palpebral fissures (eye slits)
- Insufficiency, pulmonary See: Pulmonary insufficiency
- Ciliary body melanoma See: Intraocular melanoma
- Ischium Bone making up the lower down back part of the pelvis
- Ataxia-telangiectasia A progressive neurodegenerative genetic disease characterized by cerebellar ataxia (incoordination and lack…
- Drug, antiviral An agent that kills viruses or suppresses their replication and, hence, inhibits their capability to multiply…
- Strain 1. An injury to a tendon or muscle resulting from overuse or trauma. 2. A hereditary tendency that originated…
- Diprosopus Two-faced conjoined twins (incompletely separated identical twins). The twins have almost complete fusion of…
- Cancer, breast Cancer of the tissue containing or involving the milk glands (mammary tissue). Breast cancer is diagnosed…
- CISM Critical incident stress management