Of or relating to interstices.

Roget 221: interior, internal; inner, inside, inward, intraregarding^†; inmost, innermost; deep seated, gut; intestine, intestinal; inland; subcutaneous; abdominal, coeliac, endomorphic [Physio.]; interstitial etc. (interjacent) 228^†; inwrought etc. (intrinsic) 5; inclosed etc. v.. home, domestic, indoor, intramural, vernacular; endemic.    ... show more

Roget 228: interjacent^†, intercurrent^†, intervenient^†, intervening etc. v., intermediate, intermediary, intercalary, interstitial; embolismal^†.    parenthetical, episodic; mediterranean; intrusive; embosomed^†; merged.    ... show more

Dutch: interstitieel