According to article, "Cosmic Lasers" = "Mega-Microwave Amplification by Stimulated Emission of Radiation (megamasers)". I'm still not sure what this means. Are

According to article, "Cosmic Lasers" = "Mega-Microwave Amplification by Stimulated Emission of Radiation (megamasers)". I'm still not sure what this means. Are these related to FRBs?