1) Pertaining to, situated in, or forming → interstices.
→ interstice; → -al.
Fr.: atom interstitiel
In a → crystal, an imperfection caused by the presence of an extra atom that occupies a place outside the normal → lattice position. It may be the same type of atom as the others (self interstitial) or an → impurity atom.
→ interstitial; → atom.