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irregular galaxy
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irregular galaxy

Class of galaxy with little structure, which does not conform to any of the standard shapes in the Hubble classification. The two satellite galaxies of the Milky Way, the Magellanic Clouds, are both irregulars. Some galaxies previously classified as irregulars are now known to be normal galaxies distorted by tidal effects or undergoing bursts of star formation (see starburst galaxy).



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IRR is a state agency with a current budget of $22 million, which focuses on rehabilitating the 13,000 square miles of land impacted by the mining industry.
Mining nature's bounty: Minnesota transforms an abandoned iron field ... by Parks & Recreation
The attributable risk for HCGI from drinking water was calculated as (IRR - 1)/(IRR), where IRR is the incidence rate ratio of the rate of HCGI in the sham group compared with that in the active group.
Participant blinding and gastrointestinal illness in a randomized, ... by Levy, Deborah A. / Emerging Infectious Diseases
Therefore, Unleveraged IRR is not a substitute for net income as a measure of our performance.
AvalonBay Communities Announces Disposition and Acquisition Activity by Business Wire
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