adj. Of, relating to, or situated in an interstice.
n. A webpage, usually carrying advertising, displayed before a content page.
n. An interstitial discontinuity in a crystal.
the GNU version of the Collaborative International Dictionary of English
adj. Of or pertaining to interstices; intermediate; within the tissues.
The Century Dictionary and Cyclopedia
Pertaining to, situated in, or constituting an interstice or interstices: as, interstitial change.
In entomology, situated between striæ, etc.: as, interstitial punctures on the elytra of beetles.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to interstices
Word Usage
"The term interstitial cystitis for the syndrome is considered inappropriate as it indicates inflammation in the interstitum, which is often not present."