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).
Ants, fire
Originally from S. America. Among the worst insect pests ever to invade the U.S. Red or yellowish ants of small-to-medium size with a severe sting that burns like fire. They normally feed on small insects but, with denser populations, they…
Read the definitionRandom terms
Show more- Prothrombin A coagulation (clotting) factor that is needed for the normal clotting of blood. A cascade of biochemical…
- Syndrome, polycystic ovary See: Polycystic ovarian syndrome
- Hayfever Hay fever is, always has been, and ever shall be two separate words. See: Hay fever
- Estrogen, designer See: Designer estrogen
- Retinal pigment epithelium The pigment cell layer that nourishes the retinal cells. The retinal pigment epithelium is located just…
- Myc- The plural of mycelium.
- Aquaporin A water channel. Aquaporins form pores in the membranes of cells and selectively conduct water molecules…
- Tick, Rocky Mountain wood See Rocky Mountain wood tick
- LHRH agonist A compound that is similar to LHRH (luteinizing hormone-releasing hormone) in structure and is able to act…
- Pit, ear Tiny pit in front of the ear. Also preauricular pit. A minor anomaly of no great consequence in itself. More…
- Tonotopy The spatial arrangement of where sound is perceived, transmitted, or received. There is tonotopy in the…
- Supernumerary nipple An extra nipple. Supernumerary nipples are usually smaller than normal and vestigial (nonfunctional, without…