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).
Antiphospholipid antibody syndrome
Antiphospholipid antibody syndrome (APLS): An immune disorder characterized by the presence of abnormal antibodies in the blood associated with abnormal blood clotting, migraine headaches, recurrent pregnancy losses (repeat spontaneous…
Read the definitionRandom terms
Show more- Hemorrhage, subarachnoid Bleeding within the head into the space between two membranes that surround the brain. The bleeding is…
- Glanders A bacterial infection that causes a chronic debilitating disease of equids (horses, mules, and donkeys) as…
- Granulocyte >Neutrophils have 'neutral' subtle granules; >Eosinophils have prominent granules that stain readily with the…
- Hematuria, gross Blood in the urine that can be seen with the naked eye. Hematuria may or may not be accompanied by pain, but…
- Histiocytosis, Langerhans cell Histiocytosis in which the active histiocytes normally occur in the skin. See histiocytosis.
- H (drug caution code) Abbreviation standing for habitforming on a medication that indicates caution because the medication may…
- Genome, Mus musculus All of the genetic information contained in Mus musculus, the laboratory mouse. The genomes of particular…
- Pressor substance A substance that elevates the arterial blood pressure. For example, prostacyclin (prostaglandin PGI2) is a…
- Intraoperative blood salvage The recovery of blood that has been lost into a body cavity during surgery or due to trauma. This blood can…
- Primary HIV infection The first few months after infection with HIV (the human immunodeficiency virus). During primary HIV…
- Stanley B. Prusiner See: Prusiner, Stanley B.
- Anophthalmia Absence of the eye, as a result of a congenital malformation (birth defect) of the globe. Anophthalmia…