nounAn astronomical machine which, by the movement of its parts, represents the motions and orbits of the planets. Seeorrery. from the GNU version of the Collaborative International Dictionary of English. nounAn orrery. Seeorrery. fromWiktionary, Creative Commons Attribution/Share-Alike License. ...
Define planetarium. planetarium synonyms, planetarium pronunciation, planetarium translation, English dictionary definition of planetarium. n. pl. plan·e·tar·i·ums or plan·e·tar·i·a 1. An apparatus or model representing the solar system. 2. a. An
Define planetariums. planetariums synonyms, planetariums pronunciation, planetariums translation, English dictionary definition of planetariums. n. pl. plan·e·tar·i·ums or plan·e·tar·i·a 1. An apparatus or model representing the solar system. 2.