240 entries under noun topic. ×
| optics(form, study, science, field) | |
| organic geochemistry(expression, study, treatment, science) | |
| ornithology(study, science, aspect, phenomenon) | |
| paleobiology(study, science, determination, field) | |
| paleoclimatology(study, treatment, science, knowledge) | |
| pathobiology(study, science, determination, field) | |
| pathology(study, science, determination, field) | |
| peer review(expression, study, science, aspect) | |
| petrochemistry(study, treatment, science, knowledge) | |
| petrology(study, treatment, science, knowledge) | |
| phylogeny(study, science, determination, field) | |
| physical anthropology(expression, study, science, aspect) | |
| physical cosmology(expression, form, study, science) | |
| physical law(expression, study, science, aspect) | |
| physiology(study, science, determination, field) | |
| phytochemistry(study, treatment, science, knowledge) | |
| phytopathology(study, science, determination, field) | |
| planetary geology(expression, study, treatment, science) | |
| planetary science(expression, form, study, science) | |
| plasma physics(expression, form, study, science) |
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| APA | Smart Define. (2015). natural science thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/natural_science/thesaurus/narrower |
| Chicago | Smart Define. 2015. "natural science thesaurus" https://smartdefine.org/natural_science/thesaurus/narrower (accessed October 1, 2026). |
| Harvard | Smart Define 2015, natural science thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/natural_science/thesaurus/narrower>. |
| MLA | Smart Define. "natural science thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/natural_science/thesaurus/narrower> |