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).
HER2
Abbreviation for human epidermal growth factor receptor 2. HER2 is expressed by, and involved in the growth of, some cancer cells. For example, a minority of breast cancers express HER2 protein. Also called c-erbB-2.
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Show more- Adenoidectomy Adenoidectomy: The surgical removal of the adenoids.
- Sequence, finished DNA A DNA sequence in which the bases are identified to an accuracy of no more than 1 error in 10,000 and are…
- Gargoylism From the French gargouille (waterspout), the word conveys the often-grotesque image of the medieval cathedral…
- UAL UAL stands for ultrasonic-assisted liposuction. Liposuction involves the surgical suctioning of fat deposits…
- Alport syndrome An hereditary condition characterized by kidney disease, sensorineural (nerve) deafness and sometimes eye…
- Pleural Pertaining to the pleura, the thin covering that protects the lungs. The term 'pleural' is pronounced like…
- Vein, internal jugular The deeper of the two jugular veins in the neck that drain blood from the head, brain, face and neck and…
- Blindness, night Impaired vision in dim light and in the dark, due to impaired function of specific vision cells (namely, the…
- Failure to thrive (FTT) Refers to a child whose physical growth is significantly less than that of peers. There is no official…
- Muscle, ciliary One of the muscles that relax the zonules to enable the lens to change shape for focusing. The zonules are…
- Menetrier disease See: Giant hypertrophic gastritis
- Enteropathy Any pathology (disease) of the intestine.