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).
Microscopic
So small it cannot be seen without the aid of microscope. As opposed to macroscopic (large enough to be seen with naked eye). A tiny tumor is microscopic while a big tumor is macroscopic
Read the definitionRandom terms
Show more- Clavus Synonymous with corns. The word 'clavus' is the Latin word for nail
- Tarsal gland See: Meibomian gland
- Bubo An enlarged lymph node ('swollen gland') that is tender and painful, particularly in the groin and armpit…
- Zolmitriptan Zolmitriptan: A triptan drug for the treatment of migraine. Marketed under the brand name Zomig.
- Mineral requirements, infant Minerals (calcium, phosphorus, magnesium, iron, iodine, copper and zinc) and trace elements (manganese…
- Deficiency, lactase Not enough of an enzyme called lactase in the small intestine to digest lactose, a prominent component of…
- Acoustic neurinoma A benign tumor that may develop on the hearing and balance nerves near the inner ear. The tumor results from…
- Sepsis, neonatal A serious blood bacterial infection in an infant less than 4 weeks of age. Babies with sepsis may be…
- Strait jacket See: Straitjacket
- Right-handed The preferential use of the right hand for most fine manual tasks. Approximately 90% of the population is…
- Cholesterol lowering with fibrate The fibrates are cholesterol-lowering drugs that are primarily effective in lowering triglycerides and, to a…
- Niemann-Pick disease type A The classical infantile form of the disease. See: Niemann-Pick disease