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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Acinus, pulmonary
The ending of a tiny airway in the lung, where the alveoli (air sacs) are located. In anatomy, an acinus is a round cluster of cells, usually epithelial cells, that looks somewhat like a knobby berry. The word 'acinus' means 'berry' in…
Read the definitionRandom terms
Show more- Soothing Bringing comfort, solace, reassurance, peace, composure, quietude. To soothe is to allay, balm, becalm, calm…
- Female pelvis The lower part of the abdomen located between the hip bones in the female. There are significant differences…
- Dioxin One of a number of poisonous petroleum-derived chemicals which are produced when herbicides (substances used…
- Invasive cervical cancer Cancer that has spread from the surface of the cervix to tissue deeper in the cervix or to other parts of the…
- Seasonal affective disorder (SAD) See: SAD.
- Antidepressant, tricyclic One of a class of medications used to treat depression. The tricyclic antidepressants are also used for some…
- JC virus (JCV) A virus that commonly causes infections of no consequence in children with a normal immune system but…
- Shunt, transjugular, intrahepatic, portosystemic A shunt that drains fluid from the cerebral ventricle into the abdomen.
- Trigger Something that either sets off a disease in people who are genetically predisposed to developing the disease…
- Reversal of organs, total This condition (medically called situs inversus totalis) involves complete transposition (right to left…
- Thoracic aneurysm A local widening and bulging of a vessel (an aneurysm) within the thorax (chest). See: Aortic aneurysm. An…
- Ames test A test developed in 1974 by Bruce N. Ames for identifying possible carcinogens by studying their mutagenic…