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Deimos

American

[dahy-mos] / ˈdaɪ mɒs /

noun

an ancient Greek personification of terror, a son of Ares and Aphrodite.
Astronomy. one of the two moons of Mars.

Deimos British

/ ˈdeɪmɒs /

noun

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′- /

The satellite of Mars that is second in distance from the planet.

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Deimos

The maneuver also gave the spacecraft a rare chance to observe Deimos from close range.

From Science Daily ● Aug. 26, 2026

An international team led by the University of Bern has found evidence that a single asteroid collision may have dramatically reshaped Deimos, the smaller of Mars' two moons.

From Science Daily ● Aug. 26, 2026

Deimos is the smaller and more distant of Mars' two moons.

From Science Daily ● Aug. 26, 2026

The researchers tested many possible scenarios, changing the impactor's size, speed, and impact angle while also varying assumptions about the internal structure of Deimos.

From Science Daily ● Aug. 26, 2026

The information I have suggests that Deimos and Phobos look somewhat similar to Earth’s moon, though they are much smaller in size.

From "A Rover's Story" by Jasmine Warga

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023