The fuse manufacturers have been using the term "newer" style breakers for over 25 years.
Very few (except large drawout power breakers) will stay closed for 2-3 cycles. When breakers are this slow they are usually listed with a withstand current rating rather than an interuppting rating.
Almost all molded case "loadcenter style" miniature breakers begin opening within the first 1/4-1 cycle. This is why the NEC requires actual testing. It is not unusual to find some small amp breakers that are faster than some large amp fuses.
