Definition of Phobos in English:

Share this entry


Pronunciation: /ˈfōbəs/ Pronunciation: /ˈfōbäs/
The inner, and larger, of the two satellites of Mars, discovered in 1877. Heavily cratered and shaped like a potato, it is 17 miles (28 km) long. Compare with Deimos.


Named after one of the sons of the Greek war god Ares. The name means literally 'fear'.

For editors and proofreaders

Syllabification: Pho·bos

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.