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).
Siamese twin
Twin: Identical (monozygotic) twins that did not separate fully from one another but are still partially united. Due to the incomplete division of one fertilized ovum. Such twins are known medically as conjoined twins. Conjoined twins are…
Read the definitionRandom terms
Show more- Vaginal discharge Vaginal discharge is a fluid produced by glands in the vaginal wall and cervix that drains from the opening…
- Telemedicine The use of medical information exchanged from one site to another via electronic communications for the…
- Keratitis Inflammation of the cornea (the transparent structure in the front of the eye).
- Disease Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs)…
- Bladder cancer risks Smoking is a major risk factor. Cigarette smokers develop bladder cancer 2-3 times more often than do…
- Denervation Loss of nerve supply. There are many causes of denervation. Denervation may be due to a disease as, for…
- Endoplasmic reticulum A structure within cells that is an extension of the nuclear membrane and in which proteins slated to become…
- ICSI Jaundice. At least one medical dictionary defines icterus as the presence of jaundice seen in the sclera of…
- Claustrophobia An abnormal and persistent fear of closed spaces, of being closed in or being shut in, as in elevators…
- Intracranial Within the cranium, the bony dome that houses and protects the brain. An intracranial hemorrhage is bleeding…
- Disease, graft-versus-host A reaction of donated bone marrow against a patient's own tissue. Also called GVHD
- Medicare >'senior citizens' -- people 65 years of age or older, >certain younger people with specific disabilities…