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).
Nucleic acid hybridization
A technique in which single-stranded nucleic acids (DNA or RNA) are allowed to interact so that complexes called hybrids are formed by molecules with similar, complementary sequences. Through nucleic acid hybridization, the degree of…
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Show more- Tamoxifen (Nolvadex) An antiestrogen (a drug that blocks the effects of estrogen) which competes with estrogen for binding sites…
- Neuroradiology The field within radiology that specializes in the use of radioactive substances, x-rays and scanning devices…
- Hemoptysis Spitting up blood or blood-tinged sputum. Pronounced he-MOP-tis-is. The word 'hemoptysis' comes from the…
- Shock Shock: In medicine, shock is a critical condition brought on by a sudden drop in blood flow through the body…
- Lou Gehrig disease Amyotrophic lateral sclerosis (ALS), a classic motor neuron disease. Motor neuron diseases are progressive…
- MECP2 (methyl-CpG-binding protein-2) An enzyme which, when mutated, results in RTT (Rett syndrome), a genetic disease that is a uniform and…
- Clostridium perfringens A type of bacteria that is the most common agent of gas gangrene and can also cause food poisoning as well as…
- Knee joint The knee joint has three parts. The thigh bone (the femur) meets the large shin bone (the tibia) to form the…
- Rate, sedimentation A blood test that detects and monitors inflammation in the body. It measures the rate at which red blood…
- Kidney scoping Formally known as retrograde intrarenal surgery (RIRS), this is a procedure for doing surgery within the…
- High blood pressure High blood pressure: Also known as hypertension, high blood pressure is, by definition, a repeatedly elevated…
- Hemangioma A birth irregularity where a localized tissue mass grows rich in small blood vessels. Capillary hemangiomas…