Hard-tack

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hardtack \Hard"tack`\ or Hard-tack
  \Hard"-tack`\(h[aum]rd"t[a^]k`), n.
     1. A name given by soldiers and sailors to a kind of
        unleavened hard biscuit or sea bread. Called also {pilot
        biscuit}, {pilot bread}, {ship biscuit} and {ship bread}
        [1913 Webster]


  
     2. Any of several mahogany trees, esp. the {Cercocarpus
        betuloides}. --MW10
        [PJC]

From WordNet (r) 2.0 [wn]:

  hardtack
       n 1: very hard unsalted biscuit or bread; a former ship's staple
            [syn: {pilot biscuit}, {pilot bread}, {sea biscuit}, {ship
            biscuit}]
       2: a mountain mahogany