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.
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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).
Syndrome, superior vena cava
The symptoms that result from compression of the large vein that carries blood down to the heart. The superior vena cava is a large vein that transmits blood from the upper body back to the heart. The superior vena cava is located in the…
Read the definitionRandom terms
Show more- Cervical cap A soft rubber cup with a round rim designed to fit snugly around the cervix and act as a barrier…
- Beta cell A type of cell in the pancreas. Within the pancreas, the beta cells are located in areas called the islets of…
- Auditory perception The ability to identify, interpret, and attach meaning to sound
- Vertebrae, cervical The cervical (neck) vertebrae are the upper 7 vertebrae in the spinal column (the vertebral column). They are…
- Autoimmune thyroiditis See: Hashimoto thyroiditis
- Anemia, Addison Anemia, Addison: A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not…
- Tablespoon An old-fashioned but convenient household measure of capacity. A tablespoon holds about 3 teaspoons, each…
- Injure To harm, hurt, or wound. The word injure may be in physical or emotional sense. Treadmill machines may injure…
- Drug test An examination of biologic material (such as urine, hair, saliva, or sweat) to detect the presence of…
- Antimicrobial agent A general term for drugs, chemicals, or other substances that either kill or slow the growth of microbes…
- Allodynia Pain from stimuli which are not normally painful. The pain may occur other than in the area stimulated…
- Inhibition, orgasmic See: Anorgasmia