0 something that encourages a particular activity or makes that activity more energetic or effective:
The recent publicity surrounding homelessness has given (a) fresh impetus to the cause.
1 a force that encourages a particular action or makes it more energetic or effective:
Often the impetus for change in education has had to come from outside the school establishment.
Let us for the moment grant that this notion of a mechanically-realized psychological impetus is cogent.
On the other hand, there is also no additional impetus of reinforcement, so media influences will not get an extra boost.
One is the distinction between the moral impetus to avoid and prevent harm versus the lesser, more confined, impetus to bestow benefits.
Although its main impetus is towards less developed countries, it contains much of use to pensioners in more developed nations.
In so far as this occurs through democratic transition, many of their demands are met, and their political impetus begins to decline.
In the face of this strong impetus to stay on the earlier theme, the new direction of talk actually gets taken up.
The musical qualities and context of performance, and the open-air festival, are also significant indicators of the impetus for this celebration.
As long as military technology did not undergo any further radical transformation, the impetus for further changes in the system was not compelling.