🗺️ Equal pressure lines ⚖️ Constant pressure 🧬 Same mass number

isobaric

1 7.5

Lines on a weather map that join places with the same air pressure

adjective
/ˌaɪsəˈbærɪk/

Specialized

: isobárico

Meteorologists use an isobaric map to analyze areas with similar atmospheric pressure.

Examples

The pressure is described by this isobaric curve, which is forcing this low trough off to the east.

In Harm's Way (1965)
This isobaric chart illustrates the distribution of pressure across the region.
In an isobaric process, the pressure remains constant as the gas expands.

Surface Forms

isobaric positive

Morphology

isobaric = isobar (semi-transparent) = iso + bar + iso + ic

Derivation from 'isobar' using the adjectival suffix '-ic' is a straightforward and regular morphological process.

Etymology

Isobaric comes from the Greek parts iso- 'equal' and baros 'pressure', and in weather maps the same word appears when lines join places with the same pressure. So an isobaric map or chart shows areas of equal atmospheric pressure.