Brash

a. [Cf. Ger. barsch, harsh, sharp, tart, impetuous, D. barsch, Sw. & Dan. barsk, L. Ger. bask, basch.]

1. Hasty in temper; impetuous. Grose.
2. [Arm. bresk, brusk, fragile, frail, brittle.] Brittle, as wood or vegetables. [Local, U. S.] Bartlett.

n. [See BRASH, a., 2.] 1. A rash or eruption.

2. Refuse boughs of trees; truck. Wright.
3. (Geol.) Broken and angular fragments of rocks underlying alluvial deposits. Lyell.
4. Broken fragments of ice. Kane.