rare. [ad. L. acervātiōn-em, n. of action f. acervā-re to heap up.] The action of heaping up, accumulation.
1676. Bullokar, Acervation, A gathering into heaps.
1755. Johnson, s.v. Aggregate, The complex or collective result of the conjunction or acervation of many particulars.
1794. Sullivan, View of Nat., II. 106. The deposition and acervation of oily, greasy parts of marine substances.
1823. Conybeare, in Buckland’s Reliq. Diluv., 196. These accumulations … sometimes by their acervation constitute decided hills.
