Origin: Latin suffix -ous
Nitrous has 3 different meanings across 1 category:
Nitrous oxide.
"He accidentally opened the wrong tank at the gas station and ended up inhaling nitrous instead of fuel air."
of, relating to, or derived from nitrogen, especially in which the valence of the nitrogen is lower than that of a corresponding nitric species
"The chemist adjusted the reaction conditions to ensure the product remained nitrous rather than oxidizing it further into a nitrate."