n A mass, assemblage, or sum of particulars; something consisting of elements but considered as a whole.(rfex)
n A mass formed by the union of homogeneous particles; – in distinction from a compound, formed by the union of heterogeneous particles.(rfex)
n (context|roofing) Crushed stone, crushed slag or water-worn gravel used for surfacing a built-up roof system.
n Solid particles of low aspect ratio added to a composite material, as distinguished from the matrix and any fibers or reinforcements, especially the gravel and sand added to concrete. (technical)
a (botany) Composed of several florets within a common involucre, as in the daisy; or of several carpels formed from one flower, as in the raspberry.
a Having the several component parts adherent to each other only to such a degree as to be separable by mechanical means.