| ̷ ̷(ˌ) ̷ ̷| ̷ ̷(ˌ) ̷ ̷ adjective
1. : characterized by or being atmospheric conditions reducing ceiling and visibility to zero
a zero-zero fog
zero-zero weather
2. : limited to zero by atmospheric conditions
ceiling and visibility may be unlimited one moment, and zero-zero seven minutes later — All Hands