26 entries under natural topic. ×

2
essential(adjective, close, body, material, important)
1
amoebic(adjective, body, material, animate)
1
anatomical(adjective, body, material, animate)
1
animate(adjective, material, basic, living)
1
basal(adjective, material, basic, living)
1
basic(adjective, material, important, significant)
1
biotic(adjective, body, material, animate)
1
cellular(adjective, body, material, animate)
1
constitutional(adjective, close, material, basic)
1
elemental(adjective, material, basic, living)
1
fundamental(adjective, body, material, important, significant)
1
inherent(adjective, close, material, basic)
1
innate(adjective, material, basic, living)
1
integral(adjective, body, material, animate)
1
live(adjective, material, basic, living)
1
living(adjective, material, basic, functional)
1
necessary(adjective, material, basic, living)
1
original(adjective, material, basic, living)
1
plasmic(adjective, body, material, animate)
1
primary(adjective, material, important, significant)
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APASmart Define. (2016). nuclear thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/nuclear/thesaurus/synonyms
ChicagoSmart Define. 2016. "nuclear thesaurus" https://smartdefine.org/nuclear/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, nuclear thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/nuclear/thesaurus/synonyms>.
MLASmart Define. "nuclear thesaurus" 17 March 2016. Web. 25 September 2026. <https://smartdefine.org/nuclear/thesaurus/synonyms>