vi·per·ine 
(vīpə-rīn′)
(vīpə-rīn′)adj.
Of, resembling, or characteristic of a viper, especially one of the subfamily Viperinae, such as a horned viper.
- nitric
- nitric acid
- nitric oxide
- nitride
- nitrification
- nitrifier
- nitrify
- nitrifying bacterium
- nitrile
- nitrite
- nitro-
- nitrobacterium
- nitrobenzene
- nitrocellulose
- nitrocellulosic
- nitrochloroform
- nitrofuran
- nitrofurantoin
- nitrogen
- nitrogenase
- nitrogen balance
- nitrogen base
- nitrogen cycle
- nitrogen dioxide
- nitrogen fixation