1. relating to or resembling an umbo (a raised central area on a surface)
Usage: technical; biology; archaeology

Examples

• The umbonic region of the shell showed distinctive growth patterns.
• Archaeologists identified the umbonic decoration on the ancient shield.
• The fossil’s umbonic structure helped scientists classify the species.
• The umbonic protrusion was clearly visible under the microscope.
• Medieval armor often featured umbonic reinforcements at stress points.