Definition of "compaction"
noun
countable and uncountable, plural compactions
The process of compacting something, or something that has been compacted.
Quotations
At Smithfield Frith is being shovelled up, his youth, his grace, his learning and his beauty: a compaction of mud, grease, charred bone.
2009, Hilary Mantel, Wolf Hall, Fourth Estate, published 2010, page 480