We found 3 dictionaries that define the word interstellar spaces:

General (3 matching dictionaries)

1. interstellar spaces: Collins English Dictionary
2. interstellar spaces: Vocabulary.com
3. interstellar spaces: Wiktionary

(Note: See interstellar_space as well.)

Definitions from Wiktionary (interstellar space) ▸ noun:  The space between the stars. ▸ Also see interstellar_space ▸ Words similar to interstellar spaces ▸ Usage examples for interstellar spaces ▸ Idioms related to interstellar spaces ▸ Wikipedia articles (New!) ▸ Words that often appear near interstellar spaces ▸ Rhymes of interstellar spaces ▸ Invented words related to interstellar spaces