English Vocabulary tips & definition with Gymglish.
Improve your English and try our online English lessons for free.


a planetarium: a building with a projection of the planets on a domed ceiling

Going further...

Still having difficulties with 'Planetarium' Test our online English lessons and receive a free level assessment!

Do you have smart way of remembering this rule? A tip to avoid making a mistake on 'Planetarium'?
Share it with us!