Defn: The captain of a vessel that sails upon the sea.

SEA CARD
Sea" card`.

Defn: Mariner's card, or compass.

SEA CATFISH; SEA CAT Sea" cat`fish. Sea" cat`. (Zoöl.) (a) The wolf fish. (b) Any marine siluroid fish, as Ælurichthys marinus, and Arinus felis, of the eastern coast of the United States. Many species are found on the coasts of Central and South America.

SEA CHART
Sea" chart`.

Defn: A chart or map on which the lines of the shore, islands, shoals, harbors, etc., are delineated.

SEA CHICKWEED
Sea" chick"weed`. (Bot.)

Defn: A fleshy plant (Arenaria peploides) growing in large tufts in the sands of the northern Atlantic seacoast; — called also sea sandwort, and sea purslane.

SEA CLAM
Sea" clam`. (Zoöl.)

Defn: Any one of the large bivalve mollusks found on the open seacoast, especially those of the family Mactridæ, as the common American species. (Mactra, or Spisula, solidissima); — called also beach clam, and surf clam.