Dictionary

isobar

noun iso·bar \ˈī-sə-ˌbär\

Definition of ISOBAR

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
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Illustration of ISOBAR

Origin of ISOBAR

International Scientific Vocabulary is- + -bar (from Greek baros weight); akin to Greek barys heavy — more at grieve
First Known Use: circa 1864
ISOBAR Defined for Kids

isobar

noun iso·bar \ˈī-sə-ˌbär\

Definition of ISOBAR for Kids

:  a line on a map to indicate areas having the same atmospheric pressure
Medical Dictionary

isobar

noun iso·bar \ˈī-sə-ˌbär\

Medical Definition of ISOBAR

:  one of two or more atoms or elements having the same atomic weights or mass numbers but different atomic numbers

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