0 someone who leaves a country, political party, etc., especially in order to join an opposing one:
There was no way to know whether the defectors would fight for the opposition.
1 a person who leaves his or her own country or group to join an opposing one
Defectors say that social control in the country is almost total.
The rise in the number of refugees and defectors is a sign that the state's control over the movement of its citizens is weakening.
The coalition government is trying to secure defectors from opposition parties.
It replaces the problem of explaining cooperation with that of explaining punishment of defectors.
It also allowed us to see significant differences in the make-up of the defectors.
If some ten defectors voted against the bills, it would lead to their rejection.
Basically, everyone would like to connect to a cooperator (since this leads to a higher payoff both as a defector or as a cooperator).
We see that defectors obtain a higher payoff, so they have a higher probability of being imitated.