The meaning of INTERSTITIAL is occurring in or being an interval or intervening space or segment : of, relating to, or forming an interstice. How to use interstitial in a sentence.

INTERSTITIAL definition: 1. relating to spaces between cells, tissues, or organs in the body: 2. relating to connective…. Learn more.

The interstitial fluid is a reservoir and transportation system for nutrients and solutes distributing among organs, cells, and capillaries, for signaling molecules communicating between cells, …

Define interstitial. interstitial synonyms, interstitial pronunciation, interstitial translation, English dictionary definition of interstitial. adj. 1. Relating to, occurring in, or affecting interstices.

5 meanings: 1. of or relating to an interstice or interstices 2. physics forming or occurring in an interstice 3. chemistry.... Click for more definitions.

Definition of interstitial adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 30, 2025 · Adjective interstitial (not comparable) Of, relating to, or situated in an interstice. The novel's interstitial chapters.