1. Of, relating to, or resembling a pinnule (a small leaflet or branch of a compound leaf or frond).
Usage: botanical; technical

Examples

• The fern's pinnular structure allows it to capture sunlight efficiently.
• Botanists examined the pinnular arrangement of the compound leaf under the microscope.
• The palm frond displayed a distinctive pinnular pattern with numerous small leaflets.
• Pinnular divisions are characteristic of many tropical plants.
• The researcher documented the pinnular morphology of the newly discovered species.