I. ə-ˈglä-mə-ˌrāt transitive verb
( -at·ed ; -at·ing )
Etymology: Latin agglomeratus, past participle of agglomerare to heap up, join, from ad- + glomer-, glomus ball — more at clam
Date: 1684
: to gather into a ball, mass, or cluster
II. -rət adjective
Date: 1828
: gathered into a ball, mass, or cluster ; specifically : clustered or growing together but not coherent
an agglomerate flower head
III. -rət noun
Date: 1830
1. : a rock composed of volcanic fragments of various sizes and degrees of angularity
2. : a jumbled mass or collection : agglomeration