Surf n.  The swell of the sea which breaks upon the shore, esp. upon a sloping beach.
 Surf bird Zool., a ploverlike bird of the genus Aphriza, allied to the turnstone.
 Surf clam Zool., a large clam living on the open coast, especially Mactra solidissima (syn. Spisula solidissima). See Mactra.
 Surf duck Zool., any one of several species of sea ducks of the genus Oidemia, especially Oidemia percpicillata; -- called also surf scoter. See the Note under Scoter.
 Surf fish Zool., any one of numerous species of California embiotocoid fishes. See Embiotocoid.
 Surf smelt. Zool. See Smelt.
 Surf whiting. Zool. See under Whiting.