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).
Agenesis
Lack of development of something. For example, agenesis of a toe means that toe failed to form.
Read the definitionRandom terms
Show more- Gastroesophageal junction The junction between the stomach and the esophagus; the place where the esophagus connects to the stomach
- Human kinome See Kinome
- Vein, inferior vena cava A large vein that receives blood from the lower extremities, pelvis and abdomen and empties it into the right…
- Syncope, swallowing The temporary loss of consciousness upon swallowing. Syncope is the temporary loss of consciousness or, in…
- Connexon A special type of protein composed of an assembly of six subunits that are called connexins. A connexon of…
- Growth in height See: Normal growth
- Hyperadrenocorticism Excess hormone called 'cortisol'. Often called Cushing's syndrome, it is an extremely complex condition that…
- T.i.d. (on prescription) Seen on a prescription, t.i.d. means three times a day. It is an abbreviation for 'ter in die' which in Latin…
- Familial Parkinson disease type 2 A familial form of Parkinson disease inherited in an autosomal recessive manner due to mutation in the gene…
- PROC Protein C
- Heart block A block in the conduction of the normal electrical impulses in the heart.
- Microchimerism The presence of two genetically distinct and separately derived populations of cells, one population being at…