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).
Molecule
The smallest unit of a substance that can exist alone and retain the character of that substance.
Read the definitionRandom terms
Show more- Squamous cell carcinoma in situ An early stage of skin cancer. Also known as Bowen's disease. This is a tumor that develops from the squamous…
- Temporary loss of consciousness A partial or complete loss of consciousness with interruption of awareness of oneself and ones surroundings…
- Saturated fat A fat that is solid at room temperature and comes chiefly from animal food products. Some examples are…
- Disease, subclinical An illness that stays below the surface of clinical detection. A subclinical disease has no recognizable…
- Doctors Without Borders A group which sends physicians and other health workers to some of the most destitute and dangerous parts of…
- Immunotoxin A hybrid molecule created by coupling an antibody or antigen with part or all of a toxin. The hybrid molecule…
- Viscus An internal organ of the body, specifically one within the chest (as the heart or lungs) or abdomen (as the…
- Labium A lip. Labium is the singular of the Latin neuter noun meaning lip. The plural is labia. For more…
- Sign, toe An important neurologic test based upon what the toes do when the sole of the foot is stimulated. If the big…
- Tension 1) The pressure within a vessel, such as blood pressure: the pressure within the blood vessels. For example…
- Hepatic- A combining form used before a vowel to indicate a relationship to a hepatic duct or the liver. From the…
- Obstruction, intestinal See: Intestinal obstruction