

exponential
/ˌɛk.spəʊ.ˈnɛn.tʃəl/ /ˌɛk.spoʊ.ˈnɛn.tʃəl/



adjective
Characterised by a rate of change that is proportional to the value of the varying quantity, or, equivalently, by a doubling or halving over successive fixed intervals of time or other parameter.

