adj
planetary
PLA-nih-tuh-ree
adj
1
Relating to planets or their orbits.
"The mission will study planetary formation around young stars."
"Scientists tracked the planetary motion using a new telescope."
2
Relating to the whole Earth; global in scale.
"Climate change is a planetary problem that no single country can solve alone."
How to Use Planetary
Learner’s notesIn plain EnglishHaving to do with planets, or (loosely) with the whole Earth.
Common pairings
planetary system
planetary orbit
planetary scale
planetary defense
Word Forms
planetaries plural
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The mission will study _____ formation around young stars.
Etymology
From planet plus the adjective-forming suffix -ary.