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).
Pulmonary trunk
A vessel that arises from the right ventricle of the heart, extends upward, and divides into the right and left pulmonary arteries that convey unaerated blood to the lungs. When the right ventricle contacts, the blood inside it is put…
Read the definitionRandom terms
Show more- Reproductive system In women, the organs that are directly involved in producing eggs and in conceiving and carrying babies. In…
- Homeostasis A property of cells, tissues, and organisms that allows the maintenance and regulation of the stability and…
- Absence seizure A seizure that takes the form of a staring spell. The person suddenly seems to be 'absent.' An absence…
- Brachial plexus palsy Paralysis of the arm due to an injury to the brachial plexus, a network of spinal nerves that originates in…
- Stricture, esophagus, acute A narrowing or closure of the normal opening of the swallowing tube leading to the stomach, usually caused by…
- Acinetobacter (Pronounced AH-sin-neto-bacter). A group of bacteria found in soil, water, and hospitals where they can cause…
- CNM Certified Nurse-Midwife
- Roentgenology Radiology, the science of radiation and, specifically, the use of both ionizing (like X-ray) and nonionizing…
- Study, synchronic See: Study, cross-sectional.
- IgD Immunoglobulin D, a class of immunoglobulins found as antibodies on the surface of B cells (B lymphocytes)…
- Loa loa The eye worm, a parasite that lives in humans and other primates. People contract the parasite when bitten by…
- Nondisjunction Failure of paired chromosomes to disjoin (separate) during cell division so that both chromosomes go to one…