clump

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clump

(klŭmp),
To form into clusters, small aggregations, or groups.
[A.S. clympre, a lump]

clump

(klŭmp) [AS. clympre, a lump]
1. A mass of bacteria in solution; may be caused by an agglutination reaction.
2. To gather together.
References in periodicals archive ?
Clumpiness Index [MATHEMATICAL EXPRESSION NOT (Clumpy) REPRODUCIBLE IN ASCII] Range: Clumpiness ranges from -1 to 1 Aggregation Index AI = [[g.
In brief, any argument for the clumpiness of the late universe should (since the early universe can be seen as just as much a gravitational collapse as the late) be equally an argument for the clumpiness of the early universe.
Analysis of the clumpiness of the dark matter in the maps will also allow scientists to probe the nature of the mysterious dark energy, believed to be causing the expansion of the universe to speed up.
He also explains the "Lyman-alpha forest," a way to measure the clumpiness of matter by analyzing how light from quasars interacts with intervening clouds of hydrogen.
To account for the clumpiness of the present-day universe, many researchers have invoked the notion of dark matter-weakly interacting, invisible material that doesn't glow like ordinary matter but does exert a gravitational tug.
Thus the clumpiness of the dark matter maps provides a measurement of the amount of dark energy in the universe.