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).
Apraxia
The inability to execute a voluntary motor movement despite being able to demonstrate normal muscle function. Apraxia is not related to a lack of understanding or to any kind of physical paralysis but is caused by a problem in the cortex…
Read the definitionRandom terms
Show more- Diffuse toxic goiter Graves disease, the most common cause of hyperthyroidism (overactivity of the thyroid gland), with…
- Travel medicine Travel medicine: A branch of medicine that specializes in diseases and conditions that are acquired during…
- Artery, splenic A large artery within the abdomen that arises from an arterial vessel called the celiac trunk, which emerges…
- Cohort study A study in which a particular outcome, such as death from a heart attack, is compared in groups of people who…
- Narcolepsy Narcolepsy: A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep…
- Antibody-dependent cell-mediated cytotoxicity An immune response in which antibody, by coating target cells, makes them vulnerable to attack by immune…
- Heat prostration Overheating of the body due to extreme weather conditions. Unrelieved hyperthermia can lead to collapse and…
- Angle-closure glaucoma, acute Increased pressure in the front chamber (anterior chamber) of the eye due to sudden (acute) blockage of the…
- Systolic click-murmur syndrome See: Mitral valve prolapse
- Chondrosarcoma A malignant tumor that forms in cartilage cells (chondroplasts) and that produces cartilage matrix…
- Henna A coloring made from the leaves of the Egyptian privet, Lawsonia inermis. Approved only for use as a hair…
- Metacentric chromosome A chromosome with arms of equal length.