Definition of Deimos in English:

Deimos

Syllabification: Dei·mos
Pronunciation: /ˈdīmäs
 
/
Astronomy
The outer, and smaller, of the two satellites of Mars, discovered in 1877. It is football-shaped and 10 miles (16 km) long. Compare with Phobos.

Origin

named after one of the sons of Ares in Greek mythology, the name means literally 'fear, terror'.

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