A theatre with a large concave screen on which scenes of outer space are projected; specifically one opened in Seattle, United States, in 1962.
1960s; earliest use found in The Times. From space + -arium.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。