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).
Complement system
A series of molecules that work together to perform many immune system functions. For example, the complement system helps to dissolve and remove immune complexes and to kill foreign cells
Read the definitionRandom terms
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- Dilating The widening and opening of the cervix caused by uterine contractions
- Clitoral Pertaining to the clitoris, the small elongated erectile body in the female homologous with the penis in the…
- Phytotoxin A poison in a plant. Abrin and ricin are examples of phytotoxins. Abrin comes from the seeds of a plant…
- Cranial nerve, first The cranial nerves emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge…
- Ubiquitous Present everywhere. The small protein called ubiquitin was so-named because it is present in all types of…
- Apert syndrome acrocephalosyndactyly An inherited disorder causing abnormalities of the skull, face and hands and feet. There is premature closure…
- Palate, cleft An opening in the roof of the mouth (the palate) due to a failure of the palatal shelves to come fully…
- GDB The Genome Database (GDB), the official central repository for genomic mapping data resulting from the Human…
- Northern blot A technique in molecular biology, used mainly to separate and identify pieces of RNA. Called a Northern blot…
- Symmetric lipomatosis, multiple A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper…