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).
Pericentric chromosome inversion
A basic type of chromosome rearrangement in which a segment that includes the centromere (and so is pericentric) has been snipped out of a chromosome, turned through 180 degrees (inverted), and inserted back into its original location in…
Read the definitionRandom terms
Show more- Cockles of the heart The ventricles of the heart. If a cup of tea or coffee warms the cockles of your heart, it gives you a…
- Capsaicin A component of certain plants, including cayenne and red pepper, used topically to relieve minor arthritis…
- DNA, mitochondrial Mitochondrial DNA (mtDNA) is the DNA of the mitochondrion, a structure situated in the cytoplasm of the cell…
- Diethylstilbestrol The earliest synthetic (man-made) form of the hormone estrogen. Diethylstilbestrol (DES) was once widely…
- HSAN III Hereditary sensory and autonomic neuropathy III. See: Familial dysautonomia.
- Immunodepression See immunosuppression
- BRCA1 A gene that normally acts to restrain the growth of cells in the breast but which, when mutated, predisposes…
- Peritonitis, acute Sudden inflammation of the peritoneum, the membrane lining the inner wall of the abdomen and pelvis…
- Osteolytic Pertaining to the dissolution of bone, especially the loss of calcium from bone. 'Punched-out' osteolytic…
- Paraparesis Weakness of the lower extremities
- Babinski response An important neurologic examination based upon what the big toe does when the sole of the foot is stroked. If…
- Thallium Thallium: A metallic element having the symbol Tl and the atomic number 81 and an atomic weight of about 204…