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).
Food and Drug Administration
The FDA, an agency within the U.S. Public Health Service, which is a part of the Department of Health and Human Services. Background: The FDA regulates over $1 trillion worth of products, which account for 25 cents of every dollar spent…
Read the definitionRandom terms
Show more- Ear, internal There are three sections of the ear. They are the external ear, the middle ear, and the internal ear. The…
- Exercise, passive Movement of the body, usually of the limbs, without effort by the patient. The patient is passive
- EDS (excessive daytime sleepiness) A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as…
- Amino acid, essential An amino acid that cannot be made by humans and so is essential to the human diet. There are 9 essential…
- TB Common abbreviation (spelled out T-B) for tuberculosis. Tuberculosis took its name from the characteristic…
- In situ hybridization The use of a DNA or RNA probe to detect the complementary sequence. In situ hybridization is like all nucleic…
- Temple An area just behind and to the side of the forehead and the eye, above the side of the check bone (the…
- Meningococcal vaccine Meningococcal vaccine: A vaccine to prevent meningococcal infection, including meningococcal meningitis, an…
- TPH2 Tryptophan hydroxylase 2, also known as neuronal tryptophan hydroxylase (NTPH), the key rate-limiting enzyme…
- Flatfeet A condition of the feet in which the arch of the instep is flattened and the entire sole touches the ground…
- Influenza, avian Influenza, avian: Also called fowl plague, avian flu, and bird flu. A highly contagious viral disease with up…
- Viruses Small living particles that can infect cells and change how the cells function. Infection with a virus can…