Synonyms|5Antonyms|0|Broader|28Narrower|61Related|83

61 entries under noun topic. ×

2
exoplanet(study, treatment, science, knowledge)
2
extraterrestrial atmosphere(expression, study, treatment, science)
2
interplanetary space(expression, study, treatment, science)
2
interstellar atom(expression, form, study, science)
2
interstellar cloud(expression, form, study, science)
2
interstellar medium(expression, form, study, science)
2
interstellar medium condition(expression, study, treatment, science)
2
interstellar molecule(expression, form, study, science)
2
interstellar particle(expression, study, treatment, science)
2
interstellar space(expression, form, study, science)
2
interstellar species(expression, form, study, science)
2
ion(form, study, science, field)
2
isotope(form, study, science, field)
2
isotope ratio(expression, form, study, science)
2
ketone(study, treatment, science, knowledge)
2
light(form, study, science, field)
2
meteorite(form, study, science, field)
2
molecular astrophysics(expression, form, study, science)
2
molecular gas cloud(expression, form, study, science)
2
molecular ion(expression, study, treatment, science)
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ChicagoSmart Define. 2015. "astrochemistry thesaurus" https://smartdefine.org/astrochemistry/thesaurus/narrower (accessed October 1, 2026).
HarvardSmart Define 2015, astrochemistry thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/astrochemistry/thesaurus/narrower>.
MLASmart Define. "astrochemistry thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/astrochemistry/thesaurus/narrower>