aggregate

aggregate

1. Clustered. In mosses, applied to two or more sporophytes from one perichaetium. 2. Composed of mineral crystals of one or more kinds or of rock fragments. 3. A material such as sand or gravel mixed with a binder, such as cement, to produce mortars and concrete. 4. A group of closely-related species.

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• This is version: 2.1     Last updated: February 4, 2002.

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