Note: When living they are covered with movable spines which are often long and sharp.

SEAVE
Seave, n. Etym: [Cf. Dan. siv, Sw. säf, Icel. sef.]

Defn: A rush. [Prov. Eng.] Halliwell.

SEAVY
Seav`y, a.

Defn: Overgrown with rushes. [Prov. Eng.]

SEA WALL
Sea" wall`. Etym: [AS. sæweall.]

Defn: A wall, or embankment, to resist encroachments of the sea.

SEA-WALLED
Sea"-walled`, a.

Defn: Surrounded, bounded, or protected by the sea, as if by a wall.
Shak.

SEAWAN; SEAWANT
Sea"wan, Sea"want, n.