1. a person who specializes in or is skilled in geometry
2. a moth of the family Geometridae, characterized by a looping or measuring gait in its larval stage
Usage: zoology

Examples

• The ancient Greek geometer Euclid developed foundational principles of geometry.
• She studied to become a geometer and now teaches advanced mathematics.
• The geometer carefully measured the angles of the polygon.
• A geometer moth caterpillar moves by arching its body in a distinctive looping motion.
• The geometer's work on circles and triangles influenced mathematical thought for centuries.