1. lying above or on top of something else
Usage: formal; technical

Examples

• The superjacent rock layers were formed millions of years after the lower strata.
• Geologists studied the superjacent sediments to understand the area’s history.
• The superjacent soil had different mineral content than the bedrock below.
• Engineers examined the superjacent structures before beginning excavation.
• The superjacent ice sheet pressed down on the land beneath it.
• Archaeologists carefully removed the superjacent debris to reach the ancient artifacts.