Definition of subniveal in US English:

subniveal

adjective

  • 1Existing, living, or carried out underneath snow; = subnivean.

  • 2= subnival. rare.

Origin

Late 19th century; earliest use found in The Field. From sub- + classical Latin niv-, nix snow + -eal, perhaps after French nivéal.

Pronunciation

subniveal

/sʌbˈnɪvɪəl/