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).
Premature ventricular contraction
PVC. A contraction of the lower chambers of the heart, the ventricles, which occur earlier than usual, because of abnormal electrical activity of the ventricles. The premature contraction is followed by a pause, as the heart electrical…
Read the definitionRandom terms
Show more- HHV-5 Human herpesvirus 5. See cytomegalovirus.
- Trait In genetics, a trait refers to any genetically determined characteristic. In technical terms, a genetic trait…
- Mitochondrial Referring to mitochondria. The mitochondria are normal structures called organelles in cells. They are…
- AMD Age-related macular degeneration (which may also be abbreviated as ARMD)
- La Leche League An international organization that helps and supports breastfeeding mothers with advice, ideas, and legal and…
- Pathognomonic A sign or symptom that is so characteristic of a disease that it makes the diagnosis. For example, Koplik's…
- MND Motor neuron disease
- Illness, chronic An illness that has persisted for a long period of time. It is a continuing disease process
- Melanoma, lentigo maligna One of the four clinical types of malignant melanoma and the slowest growing one. It typically begins as a…
- Wolff-Parkinson-White syndrome Wolff-Parkinson-White syndrome: A condition caused by an abnormality in the electrical system of the heart…
- Psyche 1. The mind.2. The spirit or soul.3. In psychiatry, the mind as the center of thought, emotion, and behavior…
- Hepatico- A combining form used before a consonant to indicate a relationship to a hepatic duct or the liver. From the…