DICT.TW Dictionary Taiwan

 iso·bar /ˈaɪsəˌbɑr/
 等壓線,同重元素,同重核

 iso·bar /ˈaɪsəˌbɑr/ 名詞
 同量異序元素,等壓線,同量異位素,同重體

 I·so·bar n.  Phys. Geog. A line connecting or marking places upon the surface of the earth where height of the barometer reduced to sea level is the same either at a given time, or for a certain period (mean height), as for a year; an isopiestic line. [Written also isobare.]
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 isobar
      n : an isogram connecting points having equal barometric
          pressure at a given time