1. small veins or vein-like structures; thin branching lines resembling veins
Usage: plural form; often used in geology and botany

Examples

• The leaf showed delicate veinlets branching from the main vein.
• Geologists found gold deposits in the rock’s veinlets.
• The marble’s surface was crossed by thin veinlets of darker mineral.
• Under the microscope, we could see the veinlets in the insect’s wing.
• The ore body contained numerous quartz veinlets.
• Fine veinlets of copper ran through the stone.