fallback

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noun fall·back \ˈfȯl-ˌbak\

Definition of fallback

  1. 1 :  something on which one can fall back :  reserve —often used attributively a fallback career a fallback position

  2. 2 :  a falling back :  retreat

  3. 3 :  something that falls back the fallback from an explosion

1851

First Known Use of fallback

1851

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a dividing ridge between drainage areas

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