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).
Adeno-
Prefix referring to a gland, as in adenoma and adenopathy. From the Greek aden meaning originally 'an acorn' and later 'a gland' in the form of an acorn. Before a vowel, adeno- becomes aden-, as in adenitis (inflammation of a gland)
Read the definitionRandom terms
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- Cerebral hemispheres The two halves of the cerebrum, the largest part of the brain.
- Primum non nocere The Latin words for medical slogan 'First do no harm,' a fundamental medical precept of Hippocrates (ca…
- Suicide prevention Diminishing the risk of suicide. It may not be possible to eliminate entirely the risk of suicide but it is…
- Retinoic acid syndrome A syndrome that occurs from treatment with retinoic acid and is characterized by fever, dyspnea (difficulty…
- Mesothelin A protein attached to the cell surface that is thought to have a role in cell-adhesion and possibly in…
- Occult Hidden. Occult blood is hidden from the eye but is nonetheless present and can be detected by chemical tests…
- Liquid diet The Liquid diet is the restriction of solid food intake, and replacement of solid food with liquids. In…
- Cartilage hair hypoplasia syndrome A specific genetic form of short-limbed dwarfism with skeletal features that also include normal head…
- Hemi- Prefix meaning one half, as in hemiparesis, hemiplegia, and hemithorax. From the Greek hemisus meaning half…
- Citrulline antibody Citrulline antibody: An antibody (an immune protein) directed against a circular peptide (a ring of amino…
- Hair, exclamation point Exclamation point hair is a key diagnostic finding in a disorder called alopecia areata. Alopecia areata is…