Defn: A genus of heart-shaped sea urchins belonging to the
Spatangoidea.

SPATCHCOCK
Spatch"cock`, n.

Defn: See Spitchcock.

SPATE
Spate, n. Etym: [Of Celtic origin; cf. Ir. speid.]

Defn: A river flood; an overflow or inundation. Burns.
Gareth in a showerful spring Stared at the spate. Tennyson.

SPATHA
Spa"tha, n,; pl. Spathæ. Etym: [L.] (Bot.)

Defn: A spathe.

SPATHACEOUS
Spa*tha"ceous, a. (Bot.)

Defn: Having a spathe; resembling a spathe; spathal.

SPATHAL
Spa"thal, a. (Bot.)