| NOUN | phenomenon | cosmic dust | clouds of particles or gases occurring throughout interstellar space |
|---|
| Meaning | Clouds of particles or gases occurring throughout interstellar space. | |
|---|---|---|
| Broader | cloud | Any collection of particles (e.g., smoke or dust) or gases that is visible |
| Substance of | galaxy, extragalactic nebula | (astronomy) a collection of star systems |
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