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).
Acrocentric chromosome
A chromosome (one of the microscopically visible carriers of the genetic material DNA) with its centromere (the 'waist' of the chromosome) located quite near one end of the chromosome. The 'acro-' in acrocentric comes from the Greek…
Read the definitionRandom terms
Show more- Infant, post-term An overly mature baby that has not been born until well after the usual term pregnancy. A post-term baby is…
- Ventilation, mechanical Use of a machine called a ventilator or respirator to improve the exchange of air between the lungs and the…
- Arbovirus A class of viruses transmitted to humans by arthropods such as mosquitoes and ticks. The first two letters of…
- Hepatocellular carcinoma A tumor in which the cancer starts during adulthood in cells in the liver. Also called adult primary liver…
- Elizabeth Blackwell See: Blackwell, Elizabeth
- Nerve, facial The facial nerve is the seventh cranial nerve. It is a mixed nerve that has fibers both going out and coming…
- Liver cancer, childhood See: Childhood liver cancer
- Hematoma, intracranial A hematoma (a collection of blood) within the cranium (skull). The bleed may or may not be within the brain…
- Ichthyosis, spasticity, oligophrenia syndrome Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease characterized by a triad of…
- Genetic transport defect Within the body, many molecules are able to pass across the membranes that surround cells. These molecules…
- Cell, antigen-presenting A cell that can 'present' antigen in a form that T cells can recognize it. The cells that can 'present'…
- Tarantism A disease once thought to result from the bite of the tarantula spider. This extraordinary affliction was…