What is the difference between nitrous and nitrogen oxides?

Nitrogen oxides are oxides of nitrogen. There are number of nitrogen oxides like NO (nitric oxide), N₂O₃​ (Nitrogen sesquioxide), NO₃​(nitrate) radical, N₂O₅(Dinitrogen pentoxide), N₂O(Nitrous oxide) and NO₂​(Nitrogen dioxide). All these are differ in the composition of N and O atom. Hence, we can say that nitrogen oxides is a general term used for oxides of nitrogen and nitrous oxide is a type of nitrogen oxides having formula N₂O.