threshold effect
noun[C]
ukusthefactof somethingreachingalevelorpointat which somethingstartstohappenorchange:
Wewitnessedthethresholdeffectasrenewableenergyemergedfromnichemarketstocompeteformainstreambusiness.
MARKETING
thefactthatadvertisingfor aproductorservicehas toreachacertainlevelbeforesalesincrease:
Thethresholdeffectmeansthat you have toseean ad 7timesfor it to have aneffecton you.