What Does Interstitial Mean In Biology?

What Does Interstitial Mean In Biology? 1. Relating to, occurring in, or affecting interstices. 2. Anatomy Relating to or situated in the small, narrow spaces between tissues or parts of an organ: interstitial cells; interstitial fluid. in′ter·sti′tial·ly adv. What does interstitial mean in the body? Overview. Interstitial (in-tur-STISH-ul) lung disease describes a large group of