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).
Count, platelet
The calculated number of platelets in a volume of blood, usually expressed as platelets per cubic millimeter (cmm) of whole blood. Platelets are the smallest cell-like structures in the blood and are important for blood clotting and…
Read the definitionRandom terms
Show more- Compound microscope A microscope which consists of two microscopes in series, the first serving as the ocular lens (close to the…
- Diurnal Occurring in the daytime. A patient may have a diurnal fever rather than a nocturnal one. Diurnal also can…
- Smallpox vaccination of eye See Vaccinia keratitis
- Resting phase More appropriately called interphase. The interval in the cell cycle between two cell divisions when the…
- Scoliosis, congenital A structurally normal spine that appears to have a lateral curve (scoliosis). Nonstructural scoliosis…
- Lipodystrophy, cephalothoracic A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper…
- Small calorie (Calorie) A type of lung cancer in which the cells appear small and round under the microscope. Also called oat cell…
- Zellweger syndrome A genetic disorder, also called the cerebrohepatorenal syndrome, characterized by the reduction or absence of…
- Aneurysm, cardiac Outpouching of an abnormally thin portion of the heart wall. An aneurysm is a localized widening (dilatation)…
- Emia Suffix meaning blood or referring to the presence of a substance in the blood. As for example, anemia (lack…
- Syndrome, Lenz microphthalmia See: Lenz microphthalmia syndrome
- SIDDT Sudden infant death with dysgenesis of testes. SIDDT was first identified in an Old Order Amish community in…