| pneumatometer | |
| pneumometer | |
| potency(noun, vigor, liveliness, vitality, get-up-and-go) | |
| proton | |
| puissance(noun, vigor, liveliness, vitality, get-up-and-go) | |
| punch(noun, vigor, liveliness, vitality, get-up-and-go) | |
| pycnometer liquid density(expression, idiom, measurement) | |
| radar distance(expression, idiom, measurement) | |
| radar gun velocity(expression, idiom, measurement) | |
| radial | |
| radioactive decay(expression, idiom) | |
| radioactive dust | |
| radioactive waste | |
| radiometer | |
| rain gage(expression, idiom, measurement) | |
| rain gauge(expression, idiom, measurement) | |
| refractometer | |
| respirometer | |
| rheometer | |
| scale |
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| APA | Smart Define. (2015). radioactivity thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/radioactivity/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "radioactivity thesaurus" https://smartdefine.org/radioactivity/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, radioactivity thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/radioactivity/thesaurus/synonyms>. |
| MLA | Smart Define. "radioactivity thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/radioactivity/thesaurus/synonyms> |