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).
Congenital arthrogryposis
Nonprogressive congenital contractures that develop before birth and are evident at birth (congenital). The contractures are characterized by reduced mobility of many (multiple) joints. Congenital arthrogryposis is also called…
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Show more- Epithelial basement corneal dystrophy A disorder in which the cornea (the normally clear front window of the eye) shows grayish fingerprint lines…
- Trisomy 21 syndrome A common chromosome disorder, often called Down syndrome, due to an extra chromosome number 21 (trisomy 21)…
- PA (physician assistant) >Medical histories and physical examinations: a PA is usually can perform histories and physical examinations…
- Penicillin history The discovery of penicillin, one of the major events in the history of medicine. In 1871 the scientist Joseph…
- Seizure, jackknife See: Infantile spasms
- Synaptic cleft The tiny space between two nerve cells across which the neurotransmitter acetylcholine diffuses
- Open reading frame A long sequence of DNA that has no stop codon (no signal to stop reading) and therefore may encode part or…
- Blister A collection of fluid underneath the top layer of skin (epidermis). One that is more than 5 mm in diameter…
- Shigella Epidemic and opportunistic bacillary dysentery due to infection with the Shigella bacteria. Shigellosis…
- Hypotension Any blood pressure that is below the normal expected for an individual in a given environment. Hypotension is…
- Oculodentodigital dysplasia A genetic disorder that affects many body structures and systems, including the eyes, face, teeth, fingers…
- Multidetector-row CT See: Multidetector computed tomography