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).
Glucocorticoid
A hormone that predominantly affects the metabolism of carbohydrates and, to a lesser extent, fats and proteins (and has other effects). Glucocorticoids are made in the outside portion (the cortex) of the adrenal gland and chemically…
Read the definitionRandom terms
Show more- Pulmonary edema, high altitude Pulmonary edema, high altitude: Known as HAPE (High Altitude Pulmonary Edema), a condition in which there is…
- Neuroma, optic A benign tumor of the optic nerve
- Vein, central retinal The blood vessel that carries blood away from the retina of the eye. The counterpart to the central retinal…
- Prophylactic A preventive measure. The word comes from the Greek for 'an advance guard,' an apt term for a measure taken…
- Nostril One of the openings in the nose that allows air to flow in and out of the nasal cavities. The word nostril…
- Heparin, low-weight A newer form of the drug heparin (brand name: Lovenox, Fragmin) that has a lower molecular weight than normal…
- EST (expressed sequence tag) A unique stretch of DNA within a coding region of a gene that is useful for identifying full-length genes and…
- Ampulla of Vater An enlargement of the ducts from the liver and pancreas at the point where they enter the small intestine…
- Dermatologist A doctor who specializes in the diagnosis and treatment of skin problems.
- Toe sign An important neurologic examination based upon what the toes do when the sole of the foot is stimulated. If…
- Apnea An apnea is a period of time during which breathing stops or is markedly reduced. There are two types of…
- Hallux valgus A big toe (the hallux) that is bent outward (valgus) so it overlaps the 2nd toe. A bunion is a localized…