D defs.my
Entry 1 sense Webster, 1913

Isobaric

· I·so·bar·ic · IPA
01 a. Denoting equal pressure; as, an isobaric line; specifically, of or pertaining to isobars.
  1. 1.
    Denoting equal pressure; as, an isobaric line; specifically, of or pertaining to isobars.(Phys. Geog.)