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).
Nasal passage
The walls of the nasal passages are coated with respiratory mucous membranes which contain innumerable tiny hair-like cells that act to move waves of mucus toward the throat. Dust, bacteria, and other particles inhaled from the air are…
Read the definitionRandom terms
Show more- Great saphenous vein The larger of the two saphenous veins, the principal veins that run up the leg superficially (near the…
- Idiopathic thrombocytopenic purpura A 'wastepaper basket' for those cases of immune thrombocytopenic purpura whose cause is still unknown. See…
- Ligament, anterior cruciate See: Anterior cruciate ligament
- Fine needle aspiration The use of a thin needle to withdraw material from the body. For example, this method is commonly used to…
- Rx A medical prescription. The symbol 'Rx' is usually said to stand for the Latin word 'recipe' meaning 'to…
- Acute respiratory disease A sudden condition in which breathing is difficult and the oxygen levels in the blood abruptly drop lower…
- Sac, pericardial See: Pericardial sac
- Venin Snake venom (poison).
- Nephrosis, lipoid See: Minimal change disease
- Patellectomy An operation to remove the patella
- Tuberculosis, avian A type of tuberculosis affecting birds, caused by Mycobacterium avium, which may be communicated to other…
- Posture, neutral See: Neutral posture