Source : Webster's Revised Unabridged Dictionary (1913)

Lamb's-quarters \Lamb's-quar"ters\, n. (Bot.)
   A name given to several plants of the Goosefoot family,
   sometimes used as pot herbs, as {Chenopodium album} and
   {Atriplex patulsa}.

Frost-blite \Frost`-blite"\, n. (Bot.)
   (a) A plant of the genus {Atriplex}; orache. --Gray.
   (b) The lamb's-quarters ({Chenopodium album}). --Dr. Prior.

Source : WordNet®

Chenopodium album
     n : common weedy European plant introduced into North America;
         often used as a potherb [syn: {lamb's-quarters}, {pigweed},
          {wild spinach}]