The Britannica Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
×
Britannica Homepage
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
The Britannica Dictionary
planetary
1 ENTRIES FOUND:
planetary
(adjective)
planetary
/
ˈ
plænəˌteri/
Brit
/
ˈ
plænətri/
adjective
planetary
/
ˈ
plænəˌteri/
Brit
/
ˈ
plænətri/
adjective
Britannica Dictionary definition of PLANETARY
always used before a noun
technical
:
of or relating to planets
a
planetary
system
planetary
motion/orbit
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
ASK THE EDITOR
In the example "A new teacher is coming to our school. They are here for an interview with the principal," why is the plural pronoun "they" used?
See the answer »
QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
WORD OF THE DAY
chaperone
:
someone (such as a teacher or parent) who goes with children on a trip (
US
)
Learn More »