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).
Aneuploidy
One or a few chromosomes above or below the normal chromosome number. For example, three number 21 chromosomes or trisomy 21 (characteristic of Down syndrome) is a form of aneuploidy.
Read the definitionRandom terms
Show more- Varicosity 1. An enlarged and tortuous vein, artery, or lymphatic vessel. 2. Specifically, a varicose vein
- Kidney stones, cystine Cystine kidney stones are due to cystinuria, an inherited (genetic) disorder of the transport of an amino…
- Hereditary angioedema A genetic form of angioedema. (Angioedema is also referred to as Quinke's disease.) Persons with it are born…
- Levite A member of an ancient caste of hereditary Jewish priests. Membership in the Levites is determined by…
- Threonine An amino acid, one of the 20 building blocks of protein. A dietary essential amino acid, threonine is…
- Adventitia The outermost connective tissue covering of any organ, vessel, or other structure. For example, the…
- Pneumonia, bilateral Pneumonia in both lungs. Bilateral pulmonary inflammation. Familiarly known as double pneumonia
- Alpha-ethltryptamine An illicit hallucinogenic drug related to tryptamine. Street names for alpha-ethyltryptamine include…
- Caveola An tiny pit, grotto, depression, incupping in the surface of a cell. The name 'caveola' means little cave…
- Anfinsen See: Anfinsen, Christian Boehmer, Jr.
- Sickle cell anemia A genetic blood disease due to the presence of an abnormal form of hemoglobin, namely hemoglobin S…
- Arrhythmia An abnormal heart rhythm. In an arrhythmia the heartbeats may be too slow, too rapid, too irregular, or too…