Niv
noninvasive ventilation
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- Nival
[nahy-vuh l] /ˈnaɪ vəl/ adjective 1. of or growing in snow: nival flora. /ˈnaɪvəl/ adjective 1. of or growing in or under snow
- Nivation
[nahy-vey-shuh n] /naɪˈveɪ ʃən/ noun, Geology. 1. erosion resulting from the action of frost beneath a snowbank. /naɪˈveɪʃən/ noun 1. the weathering of rock around a patch of snow by alternate freezing and thawing
- Niven
/ˈnɪvən/ noun 1. David. 1909–83, British film actor and author. His films include The Prisoner of Zenda (1937), Around the World in 80 Days (1956), Casino Royale (1967), and Paper Tiger (1975). He wrote the autobiographical The Moon’s a Balloon (1972) and Bring on the Empty Horses (1975)
- Niveous
[niv-ee-uh s] /ˈnɪv i əs/ adjective 1. resembling snow, especially in whiteness; snowy. /ˈnɪvɪəs/ adjective 1. resembling snow, esp in colour
- Nitric bacteria
plural noun 1. bacteria that convert nitrites to nitrates in the soil See also nitrobacteria