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).
Ptosis
Downward displacement. Ptosis of the eyelids is drooping of the eyelids.
Read the definitionRandom terms
Show more- Dermal Pertaining to the skin. From the Greek word derma for skin
- Vaccinia gangrenosa See Progressive vaccinia
- Barosinusitis Sinus troubles, particularly with pain, due to changing atmospheric pressures, as when going up or down in a…
- Raised hemidiaphragm See: Elevated hemidiaphragm.
- Saccade Abrupt rapid small movements of both eyes, such as when the eyes scan a line of print. The saccades can be…
- Cortisol The primary stress hormone. Cortisol is the major natural GLUCOCORTICOID (GC) in humans
- West Nile virus West Nile virus: The mosquito-borne virus that causes West Nile fever. One of the flaviviruses, a family of…
- Antiretroviral An agent or process effective against a retrovirus. For example, a drug to treat HIV
- Association of American Medical Colleges The AAMC is a nonprofit association of the 125 accredited U.S. medical schools; the 16 accredited Canadian…
- Somatropin Growth hormone made by the pituitary gland or a synthetic version of that hormone. Naturally occurring…
- Time, prothrombin A clotting test, the prothrombin time is done to test the integrity of part of the clotting scheme. The…
- Exogenous DNA DNA originating outside an organism