1. To unite or come together in a mass or cluster. 2. The total of individual units making up a mass or cluster. [L. ag-grego, pp. -atus, to add to, fr. grex (greg-), a flock]
- proteoglycan a. a large aggregation of proteoglycans noncovalently bound to a long molecule of hyaluronic acid; involved in cross-linking the collagen fibrils of cartilage matrix.
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ag·gre·gate 'ag-ri-gət adj formed by the collection of units or particles into a body, mass, or amount
ag·gre·gate -.gāt vt, -gat·ed; -gat·ing to collect or gather into a mass or whole <aggregated human albumin>
ag·gre·gate -gət n a mass or body of units or parts somewhat loosely associated with one another
Medical dictionary. 2011.