SINCE 1828
Mimas
noun
Mi·mas
| \ ˈmī-məs
\
\
Definition of Mimas
astronomy
: the seventh largest satellite of Saturn with a diameter of approximately 250 miles (400 km) characterized by a single enormous crater
The majestic saturnian rings, having beguiled astronomers for centuries, are targeted for intense study. Saturn's smaller satellites—such as Mimas, nicknamed the “Death Star,” and Iapetus, with its strange, organic-marked sur-face—will give up much of their secrets to Cassini.— Louis D. Friedman, The Planetary Report, March/April 1994
Keep scrolling for more
Comments on Mimas
What made you want to look up Mimas? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
A Green Quiz
-
- What is the best definition of green-eyed monster?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
-
A Green Quiz
How many questions can you answer about the word "green"?
Take the quiz -
Return of Name that Color!
Additional colors! More obscure than before!
Take the quiz -
True or False?
Test your knowledge - and maybe learn something along the way.
Take the quiz -
SCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share Mimas
Resources for Mimas