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单词 planetarium
释义 planetarium
 /plan'i tair"ee euhm/,  n.  ,  pl.   planetariums, planetaria /-tair"ee euh/.
  1. an apparatus or model representing the planetary system.
  2. a device that produces a representation of the heavens by the use of a number of moving projectors.
  3. the building or room in which such a device is housed.
 [1765-75; < NL, n. use of neut. of L planetarius PLANETARY; cf. -ARIUM]
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