240 entries under noun topic. ×

3
parasitology(study, treatment, science, knowledge)
3
pharmacology(form, study, science, determination)
3
physical science(expression, form, study, science)
2
coloured pigment(expression, form, nature, study)
2
chronobiology(study, science, determination, field)
2
acarology(study, science, determination, field)
2
acoustics(form, study, science, field)
2
aerobiology(study, science, determination, field)
2
agriculture(study, science, determination, field)
2
aqueous geochemistry(expression, form, study, science)
2
arachnology(study, science, determination, field)
2
astrobiology(study, science, determination, field)
2
astrodynamics(form, study, science, field)
2
astrometry(form, study, science, field)
2
astronomy(form, study, science, field)
2
astrophysics(form, study, science, field)
2
atmospheric physics(expression, form, study, science)
2
atmospheric science(expression, form, study, science)
2
atomic physics(expression, form, study, science)
2
bacteriology(expression, study, science, determination)
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APASmart Define. (2015). natural science thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/natural_science/thesaurus/narrower
ChicagoSmart Define. 2015. "natural science thesaurus" https://smartdefine.org/natural_science/thesaurus/narrower (accessed October 1, 2026).
HarvardSmart Define 2015, natural science thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/natural_science/thesaurus/narrower>.
MLASmart Define. "natural science thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/natural_science/thesaurus/narrower>