nitro

Etymology

noun

1. (uncountable, chemistry) the univalent NO₂ functional group.
2. (uncountable, informal) nitroglycerin, especially as medication.
3. (countable, informal) A beer that is nitrogenated to give it a more creamy head.
4. (uncountable, informal) nitromethane.
5. (uncountable, informal) nitrogen, especially as liquid nitrogen.
   8 April 2018 Chomp Squad, "You Can Handel It" Blaze, set the blasters to liquid nitro! We're gonna freeze this lava before it flows any further.

adj

1. (chemistry) Containing the nitro group.
   Nitro compounds tend to be unstable and often explosive.