virgaPronunciation: /ˈvəːgə/Definition of virga noun (plural virgae /ˈvəːgiː/) Meteorology a mass of streaks of rain appearing to hang under a cloud and evaporating before reaching the ground: [mass noun]:the ghostly apparition of virga—an indicator of violent downdraughts a violet virgaOrigin: 1940s: from Latin, literally 'rod, stripe'virga in other Oxford dictionaries Definition of virga in the US English dictionary