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).
Effusion, pericardial
See: Pericardial effusion
Read the definitionRandom terms
Show more- Metacarpals Five cylindrical bones extending from the wrist to the fingers.
- Pesthouse A hospital where people suffering from infectious disease were once confined and sometimes treated. 'I…
- Angina, Prinzmetal Angina, Prinzmetal: Chest pain due to a coronary artery spasm, a sudden constriction of one of the vessels…
- Immunization, HIB This immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria…
- Cancer, pancreas See: Pancreatic cancer
- JC virus (JCV) A virus that commonly causes infections of no consequence in children with a normal immune system but…
- HHS Acronym for the U.S. Department of Health and Human Services. Also known as DHHS. The U.S. Department of…
- Traumatic brain injury Brain damage from trauma. The three leading causes of death from traumatic brain injury relate to firearms…
- Microorchidism Abnormally small testes. To determine if the testes are too small, a device called an orchidometer is used…
- Dilation The process of enlargement, stretching, or expansion. The word 'dilatation' means the same thing. Both come…
- Ragweed Any of a number of weedy composite herbs that produce a pollen that is a frequent cause of allergies. Of all…
- Phenylalanine hydroxylase deficiency The inherited inability to process the amino acid phenylalanine normally, due to deficiency of the enzyme…