What does agglutinated mean?
Agglutinated describes things that have been stuck or clumped together as if by glue. The term arises most often in biology and medicine, where it names the clumping of cells, bacteria, or other particles — most famously in agglutination tests, where antibodies cause pathogens or red blood cells to gather into visible masses, signaling infection or blood-type reactions. A second, distinct sense belongs to linguistics: an agglutinated language builds words by stringing morphemes together end to end, each affix carrying its own meaning with little change to the root, as in Turkish or Finnish. The word descends from the Latin gluten, meaning glue, which also gave English 'gluteus' and 'gluten' itself. Because of its technical origins, agglutinated carries a formal, scientific register and seldom appears in casual conversation, but it remains indispensable for describing adhesion and cohesion with precision.
Having been caused to adhere or clump together into a mass, as cells or particles do in an agglutination reaction.
"The sample was discarded because the platelets had agglutinated."
Most common in laboratory and clinical reports describing test results.
Describing something characterized by or consisting of parts united as if glued together; in linguistics, describing languages that combine morphemes additively.
"Finnish is an agglutinated language with long, transparently constructed words."
The same Latin root that gives us 'glue' and 'gluten' gives us 'agglutinated' — a word scientists literally use when blood cells stick together like they've been pasted.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of agglutinated
Agglutinated derives from the Latin verb agglutinare, meaning 'to glue together,' built on gluten, the Latin word for glue. The term entered English via post-classical Latin and scientific usage in the early modern period, becoming established in nineteenth-century biology and comparative linguistics. It shares its root with 'glue,' 'glutinous,' and 'gluten,' all tracing back to the same Latin source.
Related word forms
How agglutinated is actually used
Predominantly a technical term found in microbiology, immunology, hematology, and linguistics; rare in everyday speech. In medical contexts it usually appears in the passive/participial form describing a positive agglutination test result.
Easily confused with agglutinated
Aggregated means gathered into a whole or sum, while agglutinated specifically implies sticking together as if glued, often of biological cells or particles.
Coagulated refers to a liquid thickening or clotting into a semisolid state, whereas agglutinated describes discrete particles or cells clumping together.