glair

/ɡlɛr/
noun
  1. A sticky, translucent substance made from egg whites, used as a glue or varnish, especially in bookbinding and gilding.
    • Artists once used glair to fix pigments onto illuminated manuscripts.
    • The bookbinder applied glair to the spine before adding the gold lettering.
    • She mixed fresh glair from egg whites to use as a natural adhesive.
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