darpa daroo tree • darr · · · Info · Definitions · Characters · · darpa · · Text Latin · · Script 5 · · Length 2 · · Syllables Definitions · · · (noun) the central research and development organization for the United States Department of Defense; responsible for developing new surveillance technologies since 9/11. Synonyms: Defense Advanced Research Projects Agency, DARPA. · · Noun Definition 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 p latin small letter p U+0070 r latin small letter r U+0072