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).
Ant, fire
Also called thief ants, a scourge, these red or yellow ants of small-to-medium size, originally from South America, have a severe sting that burns like fire and can trigger an allergic reaction. Avoidance and prompt treatment are essential.
Read the definitionRandom terms
Show more- Hallux What the ancient Romans called the big toe. Since hallux was a good enough word for the big toe among the…
- Casals-Ariet See: Casals-Ariet, Jordi
- Biological safety level 4 Level 4 biosafety
- Acentric chromosome A fragment of a chromosome (one of the microscopically visible carriers of the genetic material DNA) that is…
- Scutellaria barbata A Chinese herb that belongs to a group of herbs named Scutellaria (scullcap or skullcap). It is related to…
- Otitis interna Inflammation of the inner ear. Sometimes used as a synonym for labyrinthitis, inflammation of the labyrinth…
- Retrospective Looking backward on the past, on what has already taken place. A retrospective study looks backward in time…
- St. Anthony's fire The intensely painful burning sensation in the limbs and extremities caused by ergot, the consequence of a…
- Rectal itching See Anal itching
- Perchloric acid See: Perchlorate
- Insomnia Insomnia that occurs most nights and lasts a month or more. The treatment of chronic insomnia consists of…
- Philtrum The area from below the nose to the upper lip. Normally the philtrum is grooved. In fetal alcohol syndrome…