We found 3 dictionaries that define the word project echo:

General (1 matching dictionary)

1. Project Echo: Wikipedia, the Free Encyclopedia

Computing (2 matching dictionaries)

2. Webopedia (No longer online)

Definitions from Wikipedia (Project Echo) ▸ noun:  the first passive communications satellite experiment. ▸ Words similar to project echo ▸ Usage examples for project echo ▸ Idioms related to project echo ▸ Wikipedia articles (New!) ▸ Words that often appear near project echo ▸ Rhymes of project echo ▸ Invented words related to project echo