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Definition of Isobront
1. n. An imaginary line, or a line on a chart, marking the simultaneous development of a thunderstorm, as noted by observing the time when the thunder is heard at different places.
Definition of Isobront
1. Noun. A line drawn through geographical points at which a given phase of thunderstorm activity occurred simultaneously. ¹
¹ Source: wiktionary.com
Definition of Isobront
1. a contour line showing the development of thunder [n -S]