Isobar

noun

Definitions

Noun
  1. 1
    A line drawn on a map or chart connecting places of equal or constant pressure.
  2. 2
    (meteorology)an isogram connecting points having equal barometric pressure at a given time wordnet
  3. 3
    A set of points or conditions at constant pressure.
  4. 4
    Either of two nuclides of different elements having the same mass number.

Etymology

From Ancient Greek ἴσος (ísos, “equal”) + βάρος (báros, “weight”), equivalent to iso- + bar-.

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