1. a small vein or thin branching structure resembling a vein
2. a small deposit of mineral ore in rock
Usage: geology

Examples

• The leaf showed delicate veinlets branching from the main veins.
• Tiny veinlets were visible under the microscope in the tissue sample.
• The geologist discovered gold veinlets running through the quartz.
• Small veinlets of copper ore were found in the rock formation.
• The marble contained thin veinlets of darker minerals.
• Blood flows through capillaries and veinlets back to larger veins.