What does agglomerated mean?
'Agglomerated' describes things that have been gathered or fused into a clustered mass — particles clumping into lumps, granules bonding into larger grains, or settlements growing together into one continuous urban area. The word comes from the Latin 'agglomerare', to wind into a ball, a root shared with 'glomerulus', the tiny ball-shaped capillary network in the kidney. It belongs chiefly to scientific and technical registers: chemists speak of powders that have agglomerated, geographers of agglomerated metropolitan regions, and engineers deliberately agglomerate fine particles to make them easier to handle. Its connotations are neutral rather than negative — clumping can be a defect (as when damp sugar forms lumps) or a deliberate industrial process (as in the manufacture of instant coffee). Related forms include the verb 'agglomerate' and the noun 'agglomeration', which is especially prominent in economics and urban studies. The word rewards writers who need precision about how loose parts become a whole.
Having been formed or gathered into a clustered mass or ball.
"The iron ore fines were agglomerated into pellets before being fed into the furnace."
Describing material or entities that exist as a clumped or clustered mass rather than as separate particles.
"She sieved out the agglomerated flour before folding it into the batter."
The same Latin root that gives 'agglomerated' its meaning also names the tiny knot of capillaries in your kidney called the glomerulus — literally a little ball of vessels.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of agglomerated
'Agglomerated' derives from the Latin verb 'agglomerare', meaning to wind or gather into a ball, itself built from 'ad-' (toward) plus 'glomus', a ball or mass. The word entered English in the early modern period alongside its sibling 'conglomerate', which shares the same root 'glomus'. The same Latin stem survives in modern scientific vocabulary, notably in 'glomerulus', the ball-shaped capillary cluster in the kidney named for its resemblance to a wound thread-ball.
Related word forms
How agglomerated is actually used
Most common in scientific and technical writing — chemistry, materials science, powder technology, and urban geography — where it describes the physical clumping of particles or the spatial concentration of activity. The verb form 'to agglomerate' and the noun 'agglomeration' are used more often than the participle alone; as an adjective it typically appears before a noun ('agglomerated powder') or in passive constructions.
Easily confused with agglomerated
Conglomerated refers to a mixed collection of varied parts gathered together, while agglomerated emphasizes clustering into a dense mass without implying variety of components.
Aggregated means collected or summed into a total, whereas agglomerated specifically implies physical clumping into a coherent mass.