the curling foamy top of a wave
a high wave formed by the meeting of two crests
a distinctive device representing a family or corporate body, borne above the shield of a coat of arms (originally as worn on a helmet) or separately reproduced, for example on writing paper
(of a wave) form a curling foamy top
the swell begins to curl and crest
have attached at the top
his helmet was crested with a fan of spikes