DEFENSE DATA NETWORK
\dɪfˈɛns dˈe͡ɪtə nˈɛtwɜːk], \dɪfˈɛns dˈeɪtə nˈɛtwɜːk], \d_ɪ_f_ˈɛ_n_s d_ˈeɪ_t_ə n_ˈɛ_t_w_ɜː_k]\
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(DDN) A global communications network serving the USDepartment of Defense. Composed of MILNET, other portionsof the Internet, and classified networks which are not partof the Internet. The DDN is used to connect militaryinstallations and is managed by the Defense InformationSystems Agency.
By Denis Howe
Word of the day
tinctura quininae ammoniata
- A preparation made by dissolving quinin sulphate in alcohol [Br. Ph.].