ˌīkəˈnästəsə̇s noun
also ico·no·stas ē|kȯnə|stäs
( plural ico·nostases ˌīkəˈnästəˌsēz, ē|kȯnə|stäsə̇z)
Etymology: iconostasis modification of Middle Greek eikonostasi, eikonostasion, from Late Greek eikonostasion shrine, from eikono- icon- + -stasion (from Greek histanai to stand); iconostas from Russian ikonostas, from Middle Greek eikonostasi, eikonostasion — more at stand
: a screen or partition with doors and tiers of icons that separates the bema from the nave in Eastern churches