Synonyms|13Antonyms|0|Broader|4Narrower|0Related|10

3 entries under noun topic. ×

5
nitrous oxide
0
N2O
0
anesthetic
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APASmart Define. (2015). laughing gas thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/laughing_gas/thesaurus/synonyms
ChicagoSmart Define. 2015. "laughing gas thesaurus" https://smartdefine.org/laughing_gas/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, laughing gas thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/laughing_gas/thesaurus/synonyms>.
MLASmart Define. "laughing gas thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/laughing_gas/thesaurus/synonyms>