237 entries under study topic. ×
| optics(noun, form, science, field) | |
| organic geochemistry(noun, expression, treatment, science) | |
| ornithology(noun, science, aspect, phenomenon) | |
| paleobiology(noun, science, determination, field) | |
| paleoclimatology(noun, treatment, science, knowledge) | |
| pathobiology(noun, science, determination, field) | |
| pathology(noun, science, determination, field) | |
| peer review(noun, expression, science, aspect) | |
| petrochemistry(noun, treatment, science, knowledge) | |
| petrology(noun, treatment, science, knowledge) | |
| phylogeny(noun, science, determination, field) | |
| physical anthropology(noun, expression, science, aspect) | |
| physical cosmology(noun, expression, form, science) | |
| physical law(noun, expression, science, aspect) | |
| physiology(noun, science, determination, field) | |
| phytochemistry(noun, treatment, science, knowledge) | |
| phytopathology(noun, science, determination, field) | |
| planetary geology(noun, expression, treatment, science) | |
| planetary science(noun, expression, form, science) | |
| plasma physics(noun, expression, form, science) |
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| APA | Smart Define. (2015). natural science thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/natural_science/thesaurus/narrower |
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| Harvard | Smart Define 2015, natural science thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/natural_science/thesaurus/narrower>. |
| MLA | Smart Define. "natural science thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/natural_science/thesaurus/narrower> |