The Collaborative International Dictionary
Interstratify
Interstratify \In`ter*strat"i*fy\, v. t. (Geol.) To put or insert between other strata.
Wiktionary
interstratify
vb. (context geology English) To put or insert between other stratum.
WordNet
interstratify
v. arrange rocks in alternating strata
[also: interstratified]