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nondirectional

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adjective non·di·rec·tion·al \ˌnän-də-ˈrek-shnəl, -shə-n^əl, -(ˌ)dī-\

Definition of nondirectional

: not of, relating to, or indicating direction in space : not directional; especially : equally effective in all directions a nondirectional light nondirectional radar

First Known Use of nondirectional

1879

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