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).
Primary tumor
A tumor that is at the original site where it first arose. For example, a primary brain tumor is one that arose in the brain as opposed to one that arose elsewhere and metastasized (spread) to the brain. The original tumor is sometimes…
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Show more- ADA deficiency Lack of normal adenosine deaminase (ADA) activity, a genetic (inherited) condition causing one form of severe…
- Juvenile retinoschisis A genetic disease of the eye characterized by retinoschisis (splitting of the retina) symmetrically involving…
- Restitution In cytogenetics, the spontaneous rejoining of broken chromosomes to reconstitute the original chromosome…
- Speech-language pathologist A specialist who evaluates and treats communication disorders and swallowing problems. A speech-language…
- Ehlers-Danlos syndrome, dermatosparaxis type Lers-Danlos syndrome, dermatosparaxis type: A genetic disorder characterized by extremely fragile and sagging…
- Viral encephalitis Inflammation of the brain as a result of virus infection. There are many viruses that cause viral encephalitis
- Cystic hernia See: Cystocele
- Calicivirus >Norovirus, a common cause of food poisoning and acute gastroenteritis in humans; >Sapovirus, formerly called…
- Frontal lobe The part of each hemisphere of the brain located behind the forehead that serves to regulate and mediate the…
- Conjunctival Pertaining to the conjunctiva, the clear moist membrane that covers the inner surfaces of the eyelids and the…
- Hemoglobin A1C The main fraction of glycosylated hemoglobin (glycohemoglobin) which is hemoglobin to which glucose is bound…
- Tube, ear A small plastic tube inserted into the eardrum to keep the middle ear aerated for a prolonged period of time…