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).
Xeno- (prefix)
Foreign or other. As in: > >Xenoantigen -- An antigen that is found in more than one species. >Xenograft -- A surgical graft of tissue from one species an unlike species, genus or family. >Xenotransplantation -- Transplantation from one…
Read the definitionRandom terms
Show more- Dilatate To enlarge or expand. For example, to dilatate the eye is to enlarge the pupil temporarily with special…
- Trichuriasis Infection with the human whipworm, a nematode (roundworm) formally known as Trichuris trichiura. The third…
- Vestigial Adjective describing something that is a vestige (remnant) or a primitive structure, and no longer believed…
- Velvet ant sting Common in most parts of the world including the Southern and Southwestern United States, velvet ants are not…
- Otoplasty Otoplasty: Plastic surgery to reshape the outer ear.
- Audiology The study of hearing.
- Crib death The sudden and unexpected death of a baby with no known illness, typically affecting infants from 2 weeks to…
- Barium solution A liquid containing barium sulfate. The barium is radioopaque -- it shows up on x-rays. The barium outlines…
- Ptosis Downward displacement. Ptosis of the eyelids is drooping of the eyelids.
- Munchhausen syndrome by proxy A parenting disorder in which the parent either fabricates an illness or induces an illness in their child…
- Maneuver, Valsalva See: Valsalva maneuver
- Rubella vaccine A vaccine designed to prevent rubella, or German measles. German measles was once seen merely as a child's…