1 zero-zero | Definition of zero-zero

zero-zero

adjective
ze·​ro-ze·​ro | \ ˈzē-(ˌ)rō-ˈzē-(ˌ)rō How to pronounce zero-zero (audio) , ˈzir-(ˌ)ō-ˈzir-(ˌ)ō\

Definition of zero-zero

1 : characterized by or being atmospheric conditions that reduce ceiling and visibility to zero
2 : limited to zero by atmospheric conditions

First Known Use of zero-zero

circa 1930, in the meaning defined at sense 1

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