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).
Microcephaly
Microcephaly: An abnormally small head due to failure of brain growth. In precise terms, microcephaly is a head circumference that is more than 2 standard deviations below the normal mean for age, sex, race, and gestation. (Some…
Read the definitionRandom terms
Show more- Stomach flu So-called 'stomach flu' actually has nothing to do with the influenza (flu) virus. This term is sometimes…
- Casals-Ariet See: Casals-Ariet, Jordi
- D and C Stands for dilatation and curettage. This is a very common gynecologic procedure in which the cervix of the…
- Fibrillation, auricular Essentially the same as atrial fibrillation
- Focal dystonia due to torticollis Spasm of the muscles in the neck that control the position of the head, causing the head to twist and turn to…
- Poisoning, antifreeze Poisoning from antifreeze which today is usually ethylene glycol -- a clear, colorless, odorless liquid with…
- Nurse assistant A person who has completed a brief health-care training program, and who provides support services for RNs…
- Fear of blushing An abnormal and persistent fear of blushing. Sufferers of this fear experience undue anxiety even though they…
- Pathogen inactivation A process designed to eliminate most pathogens -- viruses, bacteria and fungi -- from water, air or donated…
- Eruptive xanthoma The sudden eruption on the skin of crops of pink papules (firm pea-sized bumps) with a creamy center. They…
- Middle ear There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The middle…
- Horner syndrome A complex of abnormal findings, namely sinking in of one eyeball, ipsilateral ptosis (drooping of the upper…