MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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.
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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).
Microscope, compound
A microscope that consists of two microscopes in series, the first serving as the ocular lens (close to the eye) and the second serving as the objective lens (close to the object to be viewed). Credit for creating the compound microscope…
Read the definitionRandom terms
Show more- ACL Anterior cruciate ligament
- Personality disorder A disorder characterized by the chronic use of mechanisms of coping in an inappropriate, stereotyped, and…
- Pregnancy symptoms Pregnancy symptoms: A symptom or sign of pregnancy. These symptoms and signs depend upon the time in…
- Deficiency, iron The most common known form of nutritional disorder in the world, iron deficiency results in anemia because…
- Pulmonary medicine The branch of medicine that deals with the causes, diagnosis, prevention and treatment of diseases affecting…
- Eye Institute, National (NEI) One of the US National Institutes of Health, NEI's mission is to 'conduct and support research, training…
- Senescence Aging, the process of becoming old, or the state of being old. As we age, we senesce. No known substance can…
- Crick-Brenner experiment An elegant and important experiment performed in 1961 by Francis Crick and Sydney Brenner. The experiment…
- Lability The state or quality of being labile: susceptible to change, error or instability. From the Latin labilis…
- DNA repair The body has a series of special enzymes to repair mutations (changes) in the DNA and restore the DNA to its…
- Heat index The temperature the body feels when heat and humidity are combined. The body dissipates heat by varying the…
- GERD Stands for Gastroesophageal Reflux Disease, a disorder in which there is recurrent return of stomach contents…