planetary
adjective
plan·e·tary
ˈpla-nə-ˌter-ē 
1
2
a
: of, relating to, or belonging to the earth : terrestrial
3
: having or consisting of an epicyclic train of gear wheels
Synonyms of planetary
Examples of planetary in a Sentence
a positively planetary new shopping development
Recent Examples on the Web
In more mature planetary nebulae — or even in preplanetary nebulae that are closer to the end of their preplanetary stage (with hotter stars powering them) — the ejection process has been muddied by a thousand years or more of earlier ejecta being overtaken by faster-moving, more recent ejecta.
—
Big Think, 11 Feb. 2026
Because the pre-planetary stage lasts only a few thousand years, the Egg Nebula provides scientists a chance to watch the ejection process practically in real time.
—Stefanie Waldek, Space.com, 11 Feb. 2026
Studying the origin and distribution of hydrogen is key to understanding planetary formation and the evolution of life on Earth.
—Mindy Weisberger, CNN Money, 10 Feb. 2026
Also not yet fully understood are the interactions with naturally occurring planetary waves and atmospheric cycles such as the Arctic Oscillation and the El Niño Southern Oscillation.
—Dinah Voyles Pulver, USA Today, 7 Feb. 2026
See All Example Sentences for planetary
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Big Think, 11 Feb. 2026
Because the pre-planetary stage lasts only a few thousand years, the Egg Nebula provides scientists a chance to watch the ejection process practically in real time.
—Stefanie Waldek, Space.com, 11 Feb. 2026
Studying the origin and distribution of hydrogen is key to understanding planetary formation and the evolution of life on Earth.
—Mindy Weisberger, CNN Money, 10 Feb. 2026
Also not yet fully understood are the interactions with naturally occurring planetary waves and atmospheric cycles such as the Arctic Oscillation and the El Niño Southern Oscillation.
—Dinah Voyles Pulver, USA Today, 7 Feb. 2026
See All Example Sentences for planetary
Cite this Entry
“Planetary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/planetary. Accessed 18 Feb. 2026.
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planetary
adjective
plan·e·tary
ˈplan-ə-ˌter-ē
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