isobar [ ahy-suh-bahr ]
noun
1. Meteorology. a line drawn on a weather map or chart that connects points at which the barometric pressure is the same.
2. Also i·so·bare [ahy-suh-bair]. Physics, Chemistry. one of two or more atoms having equal atomic weights but different atomic numbers.
Compare isotope.
RELATED FORMS
i·so·bar·ism, noun
See more synonyms on Thesaurus.com
Origin: 1860–65; < Greek isobarḗs “of equal weight,” from ísos iso- + báros “weight” (see bar)
EXAMPLES FROM THE WEB FOR ISOBAR
In most cases the 29.80-inch isobar furnishes a good limit, out to which the isobars may be traced.
PRACTICAL EXERCISES IN ELEMENTARY METEOROLOGY|ROBERT DECOURCY WARD
Now YOU come up with a sentence (or fic? or graphic?) that best illustrates the word.
