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).
Cancer, rectal
See: Rectal cancer
Read the definitionRandom terms
Show more- Otosclerosis The abnormal formation of new bone in the middle ear that gradually immobilizes the stapes (stirrup bone) and…
- Vector, cloning A DNA molecule originating from a virus, a plasmid (see below) or the cell of a higher organism into which…
- Mercury poisoning The metallic element mercury is poisonous to humans. Mercury poisoning can occur in both acute and chronic…
- Genetic transformation A process by which the genetic material carried by an individual cell is altered by the incorporation of…
- Pale globe Also called the globus pallidus, this is a pale-appearing spherical area in the brain. Globus is a Latin word…
- Tuberculosis, drug-resistant Tuberculosis (TB) that does not respond to drug treatment. Drug-resistant TB has become a very serious…
- Y (in chemistry) The symbol for the element yttrium, an ultrarare metal named after Ytterby in southern Sweden. Yttrium has…
- Baldness Medically known as alopecia. There are many types of baldness, each with a different cause. Baldness may be…
- Breast cancer metastasis suppressor 1 (BRMS1) A gene that plays a role in preventing the metastasis (spread) of breast cancer to other parts of the body…
- UBT Urea breath test
- ROMA Representational oligonucleotide microarray analysis. A method for the detection of genomic aberrations…
- Pilonidal sinus A sinus tract from which there may be chronic drainage of pus, due to an embedded tuft of hair, most often in…