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.
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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).
Passage, nasal
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- Phlebotomist A person who draws blood.
- National Research Council In the United States, a part of the National Academies. There are also National Research Councils in Canada…
- Arthritis, quackery Like many people with chronic ailments, sufferers from arthritis are potentially vulnerable to proponents of…
- Lateral femoral cutaneous nerve syndrome See: Meralgia paresthetica
- Edwards syndrome Trisomy 18 syndrome. Children with the syndrome have an extra chromosome 18 with a characteristic pattern of…
- Circulatory Having to do with the circulation, the movement of fluid in a regular or circuitous course. Although the…
- Cloning, cell The process of producing a group of cells (clones), all genetically identical, from a single ancestor.
- Stress exercise thallium scan Stress exercise thallium scan: A method of examining the heart to obtain information about the blood supply…
- Xanthoma, diabetic See: Eruptive xanthoma
- Cell, T-4 A type of T cell that has CD4 markers on its surface and participates in the immune response by recognizing…
- Operation, Blalock-Taussig A pioneering heart operation named after the American surgeon Alfred Blalock (1899-1964) and the pediatric…
- Fornix cerebri An arching fibrous band in the brain connecting the two lobes of the cerebrum. (The cerebrum is the largest…