Isobront

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Isobront \I"so*bront\ ([imac]"s[-o]*br[o^]nt), n. [Iso- + Gr.
     bronth` thunder.] (Meteor.)
     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.


     [Webster 1913 Suppl.]