isobar

English Thesaurus

1. (meteorology)an isogram connecting points having equal barometric pressure at a given time (noun.location)

hypernym	:	isarithm, isogram, isopleth,
definition	:	a line drawn on a map connecting points having the same numerical value of some variable (noun.location)

part meronym	:	weather chart, weather map,
definition	:	(meteorology) a map showing the principal meteorological elements at a given time and over an extended region (noun.artifact)

domain category	:	meteorology,
definition	:	the earth science dealing with phenomena of the atmosphere (especially weather) (noun.cognition)