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isobar: Meaning and Definition of

i•so•bar

Pronunciation: (ī'su-bär"), [key]
— n.
  1. a line drawn on a weather map or chart that connects points at which the barometric pressure is the same.
  2. one of two or more atoms having equal atomic weights but different atomic numbers. Cf. isotope.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
isoantigen isobaric
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