D defs.my
Entry 3 senses Webster, 1913

Rusk

/rŭsk/ · IPA /ɹʌsk/
01 n. A kind of light, soft bread made with yeast and eggs, often toasted or crisped in an oven; or, a kind of sweetened biscuit.
  1. 1.
    A kind of light, soft bread made with yeast and eggs, often toasted or crisped in an oven; or, a kind of sweetened biscuit.
  2. 2.
    A kind of light, hard cake or bread, as for stores.
  3. 3.
    Bread or cake which has been made brown and crisp, and afterwards grated, or pulverized in a mortar.