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).
Receptor, T-cell
A molecule on the surface of T-lymphocytes (T-cells) for recognizing specific antigens (foreign substances or microbes such as viruses)
Read the definitionRandom terms
Show more- Lipodystrophy syndrome A disturbance of lipid (fat) metabolism that involves the partial or total absence of fat and often the…
- Nerve, seventh cranial The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in…
- R/O Medical abbreviation for rule out
- Meibomian gland One of the little glands in the eyelids that make a lubricant called sebum which they discharge through their…
- Alpha-1 antitrypsin deficiency Alpha-1 antitrypsin deficiency: An inherited disorder that results in low or no production of a protein…
- PIGF Placental growth factor
- Disease, Graves Generalized diffuse overactivity ('toxicity') of the entire thyroid gland which becomes enlarged into a…
- Transurethral resection Surgery performed with a special instrument inserted through the urethra. Also called TUR
- Ectopia cordis A type of birth defect in the heart is abnormally located. In ectopia cordis, the heart usually protrudes…
- Maturity onset diabetes of the young Diabetes mellitus that has early onset (usually before the age of 25), is non-insulin-dependent, and is…
- Precancerous Pertaining to something that is not yet overtly cancerous, but appears to be on its way to becoming a cancer…
- Glaucoma detection You may know of the 'air puff' test or other tests used to measure eye pressure in an eye examination. But…