sacrificial - definition and synonyms

adjective 

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/ˌsækrɪˈfɪʃ(ə)l/
  1.   From our crowdsourced Open Dictionary
    2
    designed to be replaced in case of damage

    The new glass floor has four layers of glass with the sacrificial layer on top of that – this is installed so that it can be replaced if it is scratched or damaged.

    Submitted from United Kingdom on 25/11/2014

derived word

sacrificially

adverb