Back
3 definitions

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The roof or upper part in any underground mining cavity.

FK Reading Ease
52.9

FK Grade Level
High School
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  • The back is that portion of a book formed where and when the sections of it are united by sewing, stitching(), or stapling. The term back is sometimes erroneously used to describe the portion of the outer covering member which encloses the back, but the term spine(*) is preferred for this portion of the covering member.

    Context

    For Class 412

    FK Reading Ease
    54.7

    FK Grade Level
    College
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  • This definition has not yet been approved by a moderator.

    The part that rests on the wearer’s arm and can be either pressed or screwed onto the case.

    FK Reading Ease
    80.5

    FK Grade Level
    Middle School
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