Phosphorescent, (perhaps) phosphorescence (of the sea). Perhaps also as noun.

Phosphorescence seen at sea. Obsolete. rare.

phosphorescence at sea.

= milk sea n. at milk, n.1 adj.compounds 3a.

Phosphorescence on the surface of the sea. Cf. mar-fire, n.

Phosphorescence on the sea. Cf. mareel, n.

a particular kind of phosphorescent appearance on the sea; cf. earlier milky sea n. at milky, adj. compounds 2.

(a) a luminous electrical discharge which appears around a protruding object, such as a ship’s mast or a church spire, during a storm; = St. Elmo's…