1. a small crater, especially one formed on the Moon or other celestial bodies
Usage: astronomy; geology

Examples

• The lunar surface is dotted with countless craterlets formed by micrometeorite impacts.
• Astronomers studied the craterlet to understand the Moon's geological history.
• The spacecraft's high-resolution images revealed numerous craterlets in the impact basin.
• Each craterlet on Mars provides clues about the planet's past bombardment.
• The team mapped over a thousand craterlets in the survey region.