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

60 entries under study topic. ×

2
extraterrestrial atmosphere(noun, expression, treatment, science)
2
interplanetary space(noun, expression, treatment, science)
2
interstellar atom(noun, expression, form, science)
2
interstellar cloud(noun, expression, form, science)
2
interstellar medium(noun, expression, form, science)
2
interstellar medium condition(noun, expression, treatment, science)
2
interstellar molecule(noun, expression, form, science)
2
interstellar particle(noun, expression, treatment, science)
2
interstellar space(noun, expression, form, science)
2
interstellar species(noun, expression, form, science)
2
ion(noun, form, science, field)
2
isotope(noun, form, science, field)
2
isotope ratio(noun, expression, form, science)
2
ketone(noun, treatment, science, knowledge)
2
light(noun, form, science, field)
2
meteorite(noun, form, science, field)
2
molecular astrophysics(noun, expression, form, science)
2
molecular gas cloud(noun, expression, form, science)
2
molecular ion(noun, expression, treatment, science)
2
molecule(noun, form, science, field)
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MLASmart Define. "astrochemistry thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/astrochemistry/thesaurus/narrower>