1. Obtained from, Impregnated with, or resembling nitre. Nitrous acid, a compound of oxygen and nitrogen, in the proportion of three equivalents of the former to two of the latter. Nitrous oxide, a gas composed of one equivalent of oxygen and two of nitrogen, sometimes called laughing gas.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• anstrous,
• anetrous,
• naurous,
• antrous,
• citrolus,
• citrouss,
• citrous,
• nectrous,
• nitrul,
• mitrous,
• jitrous,
• hitrous,
• nutrous,
• nitdous,
• nitrois,
• nitroux,
• nitros,
• nitorus,
• nytrous,
• tetrous

• nitrogen,
• nidaros,
• nitrospan,
• nitrostat.

The adjective form of the word "nitrous" is "nitrous".

The plural form of the word "nitrous" is "nitrous". It remains the same in both singular and plural form.

The singular form of the word "nitrous" is "nitrous". This word does not change in its singular form.