Interstitial
WordNet

adjective


(1)   Of or relating to interstices
WiktionaryText

Adjective


  1. of, relating to, or situated in an interstice
    • 1999 - Neal Stephenson, Cryptonomicon:
      That he ran the risk of blowing out the stained-glass windows was of no consequence since no one liked them anyway, and the paper mill fumes were gnawing at the interstitial lead.
 
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