- of, forming, or occurring in interstices
- Anat. situated between the cellular components of an organ or structure
- Relating to, occurring in, or affecting interstices.
- Anatomy Relating to or situated in the small, narrow spaces between tissues or parts of an organ: interstitial cells; interstitial fluid.
(comparative more interstitial, superlative most interstitial)
- Of, relating to, or situated in an interstice.
From interstitium + -al.