133 entries under noun topic. ×

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element
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fluorine
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germanium
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nobelium
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plutonium
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radon
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selenium
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silicon
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tellurium
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acetylene
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actinium
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aluminum
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americium
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antimony
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atmosphere
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barium
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lithium
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agent
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ar
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basis
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APASmart Define. (2015). helium thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/helium/thesaurus/synonyms
ChicagoSmart Define. 2015. "helium thesaurus" https://smartdefine.org/helium/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, helium thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/helium/thesaurus/synonyms>.
MLASmart Define. "helium thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/helium/thesaurus/synonyms>