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).
Sinus
1. An air-filled cavity in a dense portion of a skull bone. The sinuses decrease the weight of the skull. The sinuses are formed in four right-left pairs. The frontal sinuses are positioned behind the forehead, while the maxillary sinuses…
Read the definitionRandom terms
Show more- Choanal Pertaining to the choana, the passageway from the back of one side of the nose to the throat. The choana is…
- Taenia dentata Taenia solium
- Transforming principle Name originally given to DNA. In 1944 Avery, MacLeod, and McCarty published their discovery that the…
- Sponge, vaginal contraceptive See: Vaginal contraceptive sponge
- Salk vaccine Vaccine against poliomyelitis named for Dr. Jonas Salk who developed and introduced it in 1955. It was the…
- Chromosome map A chromosome (one of the microscopically visible carriers of the genetic material DNA) with its centromere…
- Iron poisoning Iron supplements meant for adults (such as pregnant women) are a major cause of poisoning in children. Care…
- Portal vein A large vein that carries blood from the stomach and the intestines to the liver. The portal vein is formed…
- Organic 1. A chemical compound that contains carbon.2. Related to an organ.3. Grown or prepared without the use of…
- Arteritis, temporal Also called giant cell arteritis or cranial arteritis, this is a serious disease characterized by…
- Acute phase protein See: Acute-phase protein
- Medicine, nuclear See: Nuclear medicine