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).
BRCA breast cancer gene
Breast cancer gene: One of several genetic mutations linked to breast cancer and ovarian cancer. There is now convincing evidence that every woman with a BRCA mutation is at high risk for breast cancer, irrespective of whether she has a…
Read the definitionRandom terms
Show more- Hypochondriac A person who has hypochondriasis, a disorder characterized by a preoccupation with body functions and the…
- Centigrade Thermometer scale in which the freezing point of water is 0°C and the boiling point of water at sea level is…
- Serratus posterior inferior One of the serratus muscles of the back and thorax. The serratus posterior inferior muscle originates…
- Water on the brain Known medically as 'hydrocephalus', this is an abnormal buildup of cerebrospinal fluid (CSF) in the…
- Achilles In Greek mythology, the hero who was thought to have some special medical knowledge. Achilles studied…
- Dialysis Dialysis: The process of cleansing the blood by passing it through a special machine. Dialysis is necessary…
- Nitrous oxide (laughing gas) A gas that can cause general anesthesia. Nitrous oxide is sometimes given in the company of other anesthetic…
- Blood count The calculated number of white or red blood cells (WBCs or RBCs) in a cubic millimeter of blood
- Eye bleed Medically called a subconjunctival hemorrhage. A very common cause of a painless bloody eye usually first…
- Deficiency, niacin See: Pellagra
- Growth differentiation factor 8 Also called myostatin. See: Myostatin
- Muscle relaxant Muscle relaxant is a term usually used to refer to skeletal muscle relaxants (drugs), which act on the…