Associations to the word «Planetarium»

Wiktionary

PLANETARIUM, noun. A display museum in which images of stars and other astronomical phenomena are projected onto a domed ceiling.
PLANETARIUM, noun. An orrery.

Dictionary definition

PLANETARIUM, noun. A building housing an instrument for projecting the positions of the planets onto a domed ceiling.
PLANETARIUM, noun. An optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome.
PLANETARIUM, noun. An apparatus or model for representing the solar systems.

Wise words

Words are always getting conventionalized to some secondary meaning. It is one of the works of poetry to take the truants in custody and bring them back to their right senses.
William Butler Yeats