UO

abbreviation

1. Urban Operations: refers to combat, warfare, and military operations in urban areas.

Word History and Origins

Origin of UO¹

First recorded in 1995–2000

Example Sentences

For the most part, explosive volcanic eruptions are either primarily driven by rising magma, vaporized groundwater, or some combination of the two, according to Josh Crozier, who did this research as a doctoral student at the UO.

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"A cool thing about these eruptions is that there were a bunch of them in sequence that were remarkably similar; that's relatively unusual," said Leif Karlstrom, a volcanologist at the UO.

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"This link is very rare," said Joe Dufek, a volcanologist at the UO.

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Observing that migration with special cameras helped UO researchers and their colleagues capture the macroplankton's graceful, coordinated swimming behavior.

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"The largest migration on the planet happens every single night: the vertical migration of planktonic organisms from the deep sea to the surface," said Kelly Sutherland, an associate professor in biology at the UO's Oregon Institute of Marine Biology, who led the research.

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