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).
Hereditary mutation
Mutation: A heritable change in the DNA of a gene or chromosome in a cell destined to become an egg or a sperm or the zygote (the conceptus) at the single-cell stage. When transmitted to a child, an hereditary mutation is incorporated in…
Read the definitionRandom terms
Show more- Osmolarity The concentration of osmotically active particles in solution, which may be quantitatively expressed in…
- Vena cava The superior vena cava is the large vein which returns blood to the heart from the head, neck and both upper…
- Minimal change nephrotic syndrome See: Minimal change disease
- Plyometrics Any exercise in which muscles are repeatedly and rapidly stretched ('loaded') and then contracted (as in…
- Incontinentia pigmenti In medicine, the time from the moment of exposure to an infectious agent until signs and symptoms of the…
- Gamma knife A type of radiosurgery (radiation therapy) machine that acts by focusing low-dosage gamma radiation from many…
- Hapten In immunology, a molecule that is incapable, alone, of causing the production of antibodies but which can do…
- Lightning injuries A sensation of flashing lights is created when the vitreous (the clear, jelly-like substance that fills the…
- A- See: A-
- Concussion Concussion: A traumatic injury to tissues of the body such as the brain as a result of a violent blow…
- Approved drug A medication approved for marketing. In the US, the Food and Drug Administration (FDA) must approve a…
- Melan- (prefix) Prefix meaning dark or black. It comes from the Greek 'melas', black. Examples of terms containing melan-…