MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Speech disorder
A disorder affecting the ability to produce normal speech. Speech disorders may affect articulation (phonetic or phonological disorders); fluency (stuttering or cluttering); and/or voice (tone, pitch, volume, or speed). Most speech…
Read the definitionRandom terms
Show more- OBS 1. Organic brain syndrome.2. Obstetricians, in the plural
- Facultative heterochromatin Chromosome material that can be either heterochromatin or euchromatin. The inactive X chromosome is made up…
- Homogentisic acid oxidase deficiency Alkaptonuria
- Sperm function The capability of sperm to function -- to penetrate and fertilize the egg
- OxyContin OxyContin: A prescription painkiller that has become a popular and dangerous recreational drug. Also called…
- Hemolytic Referring to hemolysis, the destruction of red blood cells which leads to the release of hemoglobin from…
- Pericardial sac A conical sac of fibrous tissue which surrounds the heart and the roots of the great blood vessels. Also…
- Amyloidosis, secondary Amyloidosis, secondary : One of a group of diseases (called amyloidosis) in which protein deposits (amyloid)…
- Gigantism Excessive growth both in height and specific body parts. Gigantism with extreme height may be associated with…
- Sitophilus granarius See: Granary weevil
- Emia Suffix meaning blood or referring to the presence of a substance in the blood. As for example, anemia (lack…
- Antinuclear antibody Antinuclear antibody: An unusual antibody that is directed against structures within the nucleus of the cell…