1. Plural of geometrid; moths of the family Geometridae, characterized by a looping or measuring movement of their caterpillars.
Usage: zoology; entomology

Examples

• Geometrids are common garden pests whose caterpillars feed on leaves.
• The family Geometridae includes thousands of geometrid species worldwide.
• Many geometrids have mottled wings that provide camouflage on tree bark.
• Entomologists study geometrids to understand their ecological role in forests.
• The caterpillars of geometrids move by arching their bodies in a distinctive looping motion.