agglutinating activity is a noun meaning "the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated". It carries one recorded sense.
the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated
Definitions, synonyms and semantic relations for agglutinating activity come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.