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).
Node, sentinel lymph
The first lymph node ('gland') to receive lymphatic drainage from a tumor. Which lymph node is the sentinel node for a given tumor is determined by injecting around the tumor a tracer substance that will travel through the lymphatic system…
Read the definitionRandom terms
Show more- ECT Electroconvulsive therapy
- Demyelination A degenerative process that erodes away the myelin sheath that normally protects nerve fibers. Demyelination…
- Infectious mono See infectious mononucleosis.
- Oxyuris A group of intestinal worms that includes pinworm.
- Measles syndrome, atypical (AMS) Measles syndrome, atypical (AMS): An altered expression of measles, AMS begins suddenly with high fever…
- Curettage The removal of growths or other material from the wall of a cavity or other surface, as with a curet. A…
- Leukocyte,eosinophilic See: Eosinophil
- Tumor, desmoid See: Desmoid tumor
- Gaucher disease, type 1 Gaucher disease, type 1: The most common and best known form of Gaucher disease. It affects the spleen…
- Musculus The Latin for muscle. Plural: musculi. In anatomy and many medical textbooks and dictionaries, the muscles…
- Primary tumor A tumor that is at the original site where it first arose. For example, a primary brain tumor is one that…
- Thyroid stimulating immunoglobulin (TSI) A form of immunoglobulin G (IgG) that can bind to thyrotropin (TSH) receptors on the thyroid gland. TSIs…