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  • exa-
    /ek's*/ [SI] pref. See {{quantifiers}}.


  •  View Definition: black hole 

    black hole


    n. When a piece of email or netnews disappears mysteriously between its origin and destination sites (that is, without returning a bounce message) it is commonly said to have `fallen into a black hole'. "I think there's a black hole at foovax!" conveys suspicion that site foovax has been dropping a lot of stuff on the floor lately (see drop on the floor). The implied metaphor of email as interstellar travel is interesting in itself. Compare bit bucket.