Defn: A military officer of high rank; a marshal. [Obs.]

MARE'S-NEST
Mare's"-nest`, n.

Defn: A supposed discovery which turns out to be a hoax; something grosaly absurd.

MARE'S-TAIL
Mare's"-tail`, n.

1. A long streaky cloud, spreading out like a horse's tail, and believed to indicate rain; a cirrus cloud. See Cloud. Mackerel sky and mare's-tails Make tall ships carry low sails. Old Rhyme.

2. (Bot.)

Defn: An aquatic plant of the genus Hippuris (H.vulgaris), having narrow leaves in whorls.

MARGARATE
Mar"ga*rate, n. Etym: [Cf. F. margarate.] (Physiol. Chem.)

Defn: A compound of the so-called margaric acid with a base.

MARGARIC
Mar*gar"ic, a. Etym: [Cf. F. margarique. See Margarite.]