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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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Recent Examples of isobar from the Web
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Dear Tom, What determines how isobars are drawn on weather maps?
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Isobars help the meteorologist locate frontal boundaries because fronts are located in troughs of low pressure.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'isobar'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Illustration of isobar
Origin and Etymology of isobar
International Scientific Vocabulary is- + -bar (from Greek baros weight); akin to Greek barys heavy — more at grieve
ISOBAR Defined for Kids
isobar
playDefinition of isobar for Students
: a line on a map to indicate areas having the same atmospheric pressure
Medical Dictionary
isobar
playMedical Definition of isobar
: one of two or more atoms or elements having the same atomic weights or mass numbers but different atomic numbers
Learn More about isobar
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See words that rhyme with isobar Britannica.com: Encyclopedia article about isobar
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