Longman Dictionary of Contemporary English homepage

Date: 1700-1800
Language: Modern Latin
Origin: Latin planeta; PLANET

planetarium

noun
     
Related topics: Astronomy
plan‧e‧tar‧i‧um [countable]
HA a building where lights on a curved ceiling show the movements of planets and stars

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary