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).
Hormone
A chemical substance produced in the body that controls and regulates the activity of certain cells or organs. Many hormones are secreted by specialized glands such as the thyroid gland. Hormones are essential for every activity of daily…
Read the definitionRandom terms
Show more- NMR Nuclear Magnetic Resonance. An imaging technique that does not use radiation.
- Cilium A fine hairlike projection from a cell such as those in the respiratory tract. Cilia can help to sweep away…
- QNS On a lab report, Quantity Not Sufficient. The sample is not large enough to do the test
- Hippophobia An abnormal and persistent fear of horses. Sufferers of this fear experience undue anxiety even when a horse…
- Retinoblastoma Retinoblastoma: A malignant eye tumor in children, usually under age 5, that arises in cells in the…
- Coke Street name for cocaine, the most potent stimulant of natural origin, a bitter addictive anesthetic (pain…
- Vesicate A substance that causes tissue blistering. Also referred to as a vesicant.
- Trait, sickle cell A person who possess one copy of the gene for sickle cell anemia. This person carries the gene but does not…
- Cross-section In anatomy, a cross-section is a transverse cut through a structure or tissue. The opposite of a…
- Centrencephalic seizure See: Grand mal
- Histiocytic necrotizing lymphadenitis A disorder, also called Kikuchi disease, that typically causes 'swollen glands' in the neck (cervical…
- Talc A very soft, soapy-feeling mineral that is a silicate of magnesium, sometimes with small amounts of aluminum…