Mo-rāss', n.

noun

n. [D. moeras, maras, Sw. moras, Dan. morads, Ger. morast, O. Ger. morasz, It. marazzo, marese, Fr. marage, marais, marois, Norm. Fr. maras, L. Lat. maragium, from Lat. mare, the sea; L. Lat., any collection of water, O. Fr. mare, D. maar.] A tract of soft, wet ground; a marsh; a fen.

Morass ore, bog iron ore.