—adj. 1. formed by the conjunction or collection of particulars into a whole mass or sum; total; combined: the aggregate amount of indebtedness. 2. Bot. a. (of a flower) formed of florets collected in a dense cluster but not cohering, as the daisy.
b. (of a fruit) composed of a cluster of carpels belonging to the same flower, as the raspberry.
3. Geol.(of a rock) consisting of a mixture of minerals separable by mechanical means.
—n. 1. a sum, mass, or assemblage of particulars; a total or gross amount: the aggregate of all past experience. 2. a cluster of soil granules not larger than a small crumb.
3. any of various loose, particulate materials, as sand, gravel, or pebbles, added to a cementing agent to make concrete, plaster, etc.
4. Math.set (def. 110).
5. in the aggregate, taken or considered as a whole: In the aggregate, our losses have been relatively small.
—v.t. 1. to bring together; collect into one sum, mass, or body.
2. to amount to (the number of): The guns captured will aggregate five or six hundred.