In meteorology, a breaker is a sea surface wave that has become too steep to be stable and that breaks on the shore or in the open ocean.
Breakers can be classified into four categories:
1) A spilling breaker breaks gradually over a considerable distance;
2) plunging breakers tend to curl over and break with a crash;
3) surging breakers peak up, but then instead of spilling or plunging, they surge up on the beach face;
4) collapsing breakers break in the middle or near the bottom of the wave rather than at the top.
Breaker: A wave that has become so steep that the crest of the wave topples forward, moving faster than the main body of the wave.