MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Apposition
The word 'apposition' has several senses including the act of adding or accretion and also the putting of things in juxtaposition, or side by side. Growth by apposition is a mode of growth that is characteristic of many tissues in the body…
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Show more- Osteoblastoma A benign tumor in bone tissue. Osteoblastomas are small, and are seen most frequently in children or young…
- Rapid plasma reagin test A screening blood test for syphilis. Rapid plasma reagin is commonly abbreviated RPR. A negative…
- Leukemia, acute myeloid Leukemia, acute myeloid: A quickly progressive malignant disease in which there are too many immature…
- Abuse, pregnancy Abuse of an expectant mother. This abuse is most often perpetrated by the woman's spouse, partner, or…
- Alkaloid, vinca See: Vinca alkaloid
- Acute thrombocytopenic purpura The sudden onset of low blood platelet levels with bleeding into the skin and elsewhere. Acute…
- SPECT An acronym that stands for Single Photon Emission Computed Tomography, a nuclear medicine procedure in which…
- Schedules, Gesell Developmental A measure of child development devised by the American child psychologist and pediatrician Arnold Gesell…
- Snellen's test type The letters on the familiar eye chart used to measure how well you see at various distances. The eye chart…
- Oxyhemoglobin The oxygen-loaded form of hemoglobin, the predominant protein in red blood cells. Hemoglobin is a protein…
- Protein A large molecule composed of one or more chains of amino acids in a specific order determined by the base…
- Anticoagulant Any agent used to prevent the formation of blood clots. Anticoagulants have various uses. Some are used for…