transcription, транскрипция: [ ˈī-sə-ˌbär ]
noun
Etymology: International Scientific Vocabulary is- + -bar (from Greek baros weight); akin to Greek barys heavy — more at grieve
Date: circa 1864
1. : an imaginary line or a line on a map or chart connecting or marking places of equal barometric pressure
2. : one of two or more atoms or elements having the same atomic weights or mass numbers but different atomic numbers
[
isobar 1
]