53 entries under form topic. ×

2
ozone layer(noun, expression, study, science)
2
paleoclimatology(noun, study, science, field)
2
paleotempestology(noun, study, science, field)
2
pedosphere(noun, study, science, field)
2
planetary boundary layer(noun, expression, study, science)
2
solid earth(noun, expression, study, science)
2
stratopause(noun, study, science, field)
2
stratosphere(noun, study, science, field)
2
thermopause(noun, study, science, field)
2
thermosphere(noun, study, science, field)
2
tropopause(noun, study, science, field)
2
troposphere(noun, study, science, field)
2
turbopause(noun, study, science, field)
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APASmart Define. (2011). earth science thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/earth_science/thesaurus/narrower
ChicagoSmart Define. 2011. "earth science thesaurus" https://smartdefine.org/earth_science/thesaurus/narrower (accessed September 29, 2026).
HarvardSmart Define 2011, earth science thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/earth_science/thesaurus/narrower>.
MLASmart Define. "earth science thesaurus" 22 May 2011. Web. 29 September 2026. <https://smartdefine.org/earth_science/thesaurus/narrower>