Word Study
    
                                	isobarism |
                                	isobarometric |
                                	isobathytherm |
                                	isobathythermic |
                                	isobilateral |
                                isobront
                                	| isobutyl nitrite 
                                	| isobutylene 
                                	| isobutylphenyl propionic acid 
                                	| isocarboxazid 
                                	| isoceles 
                            
        isobront
CIDE DICTIONARY
isobront, n. [Iso- + Gr. bronth` thunder.]. 
                                            
                                         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.]                                                                                                                    
                                                                                    
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