interlayer

/ˈɪntərˌleɪər/
noun
  1. A layer of material placed between two other layers, often for protection, insulation, or bonding.
    • In laminated flooring, the interlayer provides soundproofing and moisture resistance.
    • The geologist studied the thin interlayer of clay between the sandstone deposits.
    • The windshield has a plastic interlayer that holds the glass together if it cracks.
Synonyms
verb
  1. To place or insert a layer between other layers.
    • You should interlayer the photos with acid-free paper to prevent damage.
    • The manufacturer interlayers the fabric with a waterproof membrane.
    • The chef decided to interlayer the cake with fresh strawberries and cream.
Synonyms