Definition of nival in English:

nival

adjective

  • Relating to or characteristic of a region of perpetual snow.

    • ‘The nival regime is modified where additional sources of water supply or significant storage mechanisms alter the streamflow pattern.’
    • ‘The prolacustrine regime provides a strong contrast to the nival pattern, in that large lake storage strongly attenuates high flows and maintains steady runoff during the winter.’
    • ‘Rivers of the Mackenzie Basin exhibit several seasonal flow patterns that include the nival (snowmelt dominated), proglacial (influenced by glacier melt), wetland, prolacustrine (below large lakes), and regulated flow regimes.’

Origin

Mid 17th century: from Latin nivalis, from nix, niv- ‘snow’.

Pronunciation

nival

/ˈnīvəl//ˈnaɪvəl/