Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym COSMOS is...

COSMOS is

Counter Surge Mission Mortar System

More Meanings For COSMOS:

Cluster Of Systems of Metadata for Official Statistics
Cooperative Object Service Management for Open Systems
Consolidated Online Modulated Operating Systems
Customer Oriented Service Management And Operational System
Counter Surge Mission Mortar System
Community-Oriented Science and Mathematics Opportunities For Students

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