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).
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Show more- Good Samaritan Someone who voluntarily helps someone else who is in distress. The term 'Good Samaritan' comes from the…
- Line, germ A sequence of cells, each descended from earlier cells in the lineage, which will develop into new sperm and…
- Gas exchange The primary function of the lungs involving the transfer of oxygen from inhaled air into the blood and the…
- Quiescent Marked by a state of inactivity, repose, or tranquillity. For example, a quiescent stem cell is a stem cell…
- Anesthetist 1. In the US, a nurse or technician trained to administer anesthetics.2. In the UK, the same as an…
- NIOSH The National Institute for Occupational Safety and Health, a US Federal agency responsible for conducting…
- Drugs during pregnancy, dangerous A teratogen is an agent that can disturb the development of the embryo or fetus. Teratogens halt the…
- Carcinogenic Causing cancer or contributing to the causation of cancer. Pertaining to a carcinogen
- Trigeminal nerve The trigeminal nerve functions both as the chief nerve of sensation for the face and the motor nerve…
- Nictitate To wink. Nictitating spasm is spasm of the eyelid with continuous winking. 'Nictitate' and the older verb…
- Fetal infant An extremely low birth weight infant. A very, small infant. One, for example, with a birth weight of 400 to…
- Deafness and Communication Disorders, Institute Institute on (NIDCD): One of the US National Institutes of Health. The mission of the National Institute on…