Definition of cosmic dust
: very fine particles of solid matter found in any part of the universe
Our team at The Usage has selected the best telescopes for kids.
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
“In Vino Veritas” and Other Latin Phrases to Live By
Top 10 Latin Phrases
Galaxy Brain: Words for Thought and Thinking
What's (another word for) the big idea?
Merriam-Webster's Words of the Week - Jan. 14
From the week ending 1/14/2022
8 Colors from the Bigger Crayon Box
Here's where those fancy shades get their names.
Ask the Editors