60 entries under study topic. ×

2
nucleobase(noun, treatment, science, knowledge)
2
organic compound(noun, expression, treatment, science)
2
organic matter(noun, expression, treatment, science)
2
outer space(noun, expression, form, science)
2
protostar(noun, treatment, science, knowledge)
2
protostellar binary(noun, expression, treatment, science)
2
quantum mechanical phenomenon(noun, expression, treatment, science)
2
radiation(noun, form, science, field)
2
radical(noun, treatment, science, knowledge)
2
radio wave(noun, expression, treatment, science)
2
solid material(noun, expression, treatment, science)
2
space(noun, form, science, field)
2
spectroscopy(noun, form, science, field)
2
spectrum(noun, form, science, field)
2
star(noun, form, science, field)
2
stellar evolution(noun, expression, treatment, science)
2
symmetry-forbidden reaction(noun, expression, treatment, science)
2
temperature(noun, expression, form, science)
2
timescale(noun, treatment, science, knowledge)
2
universe(noun, treatment, science, knowledge)
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APASmart Define. (2015). astrochemistry thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/astrochemistry/thesaurus/narrower
ChicagoSmart Define. 2015. "astrochemistry thesaurus" https://smartdefine.org/astrochemistry/thesaurus/narrower (accessed September 26, 2026).
HarvardSmart Define 2015, astrochemistry thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/astrochemistry/thesaurus/narrower>.
MLASmart Define. "astrochemistry thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/astrochemistry/thesaurus/narrower>