133 entries under noun topic. ×
| element | |
| fluorine | |
| germanium | |
| nobelium | |
| plutonium | |
| radon | |
| selenium | |
| silicon | |
| tellurium | |
| acetylene | |
| actinium | |
| aluminum | |
| americium | |
| antimony | |
| atmosphere | |
| barium | |
| lithium | |
| agent | |
| ar | |
| basis |
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| APA | Smart Define. (2015). helium thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/helium/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "helium thesaurus" https://smartdefine.org/helium/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, helium thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/helium/thesaurus/synonyms>. |
| MLA | Smart Define. "helium thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/helium/thesaurus/synonyms> |