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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Ubiquitous
Present everywhere. The small protein called ubiquitin was so-named because it is present in all types of cells and its amino acid sequence is identical in all creatures from insects to humans
Read the definitionRandom terms
Show more- Alpha-fetoprotein (AFP) AFP is a plasma protein that is normally produced by the fetus. It serves as the basis for some useful tests…
- Virus, Ebola A notoriously deadly virus that causes fearsome symptoms, the most prominent being high fever and massive…
- Qualified health claim A claim authorized by the US Food and Drug Administration (FDA) that must be supported by credible scientific…
- Granular leukocyte >Neutrophils have 'neutral' subtle granules; >Eosinophils have prominent granules that stain readily with the…
- Exaggerated startle disease A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Joint hypermobility syndrome A common benign childhood condition involving hypermobile joints (that can move beyond the normal range of…
- Affective disorder, seasonal (SAD) Depression that tends to occur (and recur) as the days grow shorter in the fall and winter. It is believed…
- Hematologist A physician who is specially trained in the diagnosis, treatment, and prevention of diseases of the blood and…
- Type II error The statistical error (said to be 'of the second kind' or beta error) made in testing an hypothesis when it…
- Fibrous dysplasia, monostotic Excessive growth of hard fibrous tissue that replaces normal bone tissue in a single bone. Symptoms may…
- Interneuron A neuron that exclusively signals another neuron
- Syndrome, Apert (acrocephalosyndactyly) An inherited disorder with abnormalities of the skull and face and the hands and feet. There is premature…