noun
- a scientist who studies planets and their physical characteristics
Usage: scientific
Examples
- The planetologist analyzed rock samples from Mars.
- She became a planetologist after studying geology in college.
- The team of planetologists discovered evidence of ancient water on the planet.
- A planetologist uses telescopes and spacecraft data to study distant worlds.
- The planetologist’s research focused on the atmospheric composition of Venus.
- Many planetologists work for NASA or other space agencies.