MARCASITE Mar"ca*site, n. Etym: [F. marcassite; cf. It. marcassita, Sp. marquesita, Pg. marquezita; all fr. Ar. marqashitha.] (Min.)

Defn: A sulphide of iron resembling pyrite or common iron pyrites in composition, but differing in form; white iron pyrites. Golden marcasite, tin. [Obs.]

MARCASITIC; MARCASITICAL
Mar`ca*sit"ic, Mar`ca*sit"ic*al, a.

Defn: Containing, or having the nature of, marcasite.

MARCASSIN
Mar*cas"sin, n. Etym: [F.] (Her.)

Defn: A young wild boar.

MARCATO
Mar*ca"to, a. Etym: [It.] (Mus.)

Defn: In a marked emphatic manner; — used adverbially as a direction.

MARCELINE Mar"cel*ine, n. Etym: [F., fr. L. marcidus withered, fr. marcere to wither, shrivel.]

Defn: A thin silk fabric used for linings, etc., in ladies' dresses.