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).
Dilator
A device used to stretch or enlarge an opening. Patients with scarring of the muscular tube through which food passes from the throat to the stomach (esophagus) can require a dilator procedure in order to open the esophagus for adequate…
Read the definitionRandom terms
Show more- Polycythemia Too many red blood cells. The opposite of anemia. Polycythemia formally exists when the hemoglobin, red blood…
- Bedsore See: Bed sore
- Condom, female Although the word 'condom' usually conjures up the male condom, there is a female condom. The Reality Female…
- Ear tag Common minor anomaly, a rudimentary tag of ear tissue, often containing a core cartilage, usually located…
- Munchausen syndrome (This is an alternate entry to Munchhausen syndrome with two h's in Munchhausen. Whole medical reports have…
- Acetoacetate A molecular ion, CH3COCH2COO-, derived from acetoacetic acid
- Italian disease Syphilis. Depending upon someone's thoughts as to where the disease came from, syphilis was also known as the…
- MRSA infection MRSA infection: Frequently used abbreviation for: Methicillin-resistant staphylococcus aureus.
- Micro- Prefix derived from the Greek 'mikros' meaning small. Examples of the many biomedical terms containing…
- Factor VIII Factor eight, a key factor in the process of blood coagulation (clotting). Lack of normal factor VIII causes…
- Arteriogram An x-ray of blood vessels, which becomes visible after an injection of contrast solution into the circulation…
- Occipital hematoma A hematoma (collection of blood) in the occipital region (at the back of the head). An occipital hematoma may…