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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 par·sec /ˈpɑrˌsɛk/
 表示天體間距離的單位

From: WordNet (r) 2.0

 parsec
      n : a unit of astronomical length based on the distance from
          Earth at which stellar parallax is 1 second of arc;
          equivalent to 3.262 light years [syn: secpar]