1. having ribs or ridges; ribbed
Usage: biology; botany

Examples

• The costate leaf showed distinct parallel ridges running from base to tip.
• Marine biologists identified the shell as costate due to its prominent ribs.
• The costate pattern on the fossil indicated it belonged to a brachiopod species.
• Botanists use the term costate to describe leaves with raised veins.
• The costate surface of the seed pod made identification easier.
• Under the microscope, the costate structure was clearly visible.