Dictionary.com
Thesaurus.com
Showing results for Deimos. Search instead for deprimos.

Deimos

American  
[dahy-mos] / ˈdaɪ mɒs /

noun

  1. an ancient Greek personification of terror, a son of Ares and Aphrodite.

  2. Astronomy. one of the two moons of Mars.


Deimos British  
/ ˈdeɪmɒs /

noun

  1. the smaller of the two satellites of Mars and the more distant from the planet. Approximate diameter: 13 km Compare Phobos

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Deimos Scientific  
/ dē′mōs,dā′- /
  1. The satellite of Mars that is second in distance from the planet.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

It will also observe the planet's other moon, Deimos, although it will not land on it.

From Barron's ● Oct. 19, 2026

Either a space rock smashed into Mars early in its history, and Phobos and Deimos were created from the debris.

From BBC ● Oct. 18, 2026

According to the researchers, an asteroid about 320 meters across striking Deimos at an angle of 45 degrees could have produced the size and shape of the depression now visible near the moon's south pole.

From Science Daily ● Aug. 26, 2026

Perseverance has observed these events as well, including occasions when Phobos or Deimos passes across the Sun as viewed from the Martian surface.

From Science Daily ● Aug. 13, 2026

We find them throughout the inner solar system—from Mercury, closest to the Sun, to cloud-covered Venus to Mars and its tiny moons, Phobos and Deimos.

From "Cosmos" by Carl Sagan

Random Word

Spin the wheel and learn a new word!

Get a word

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training