Source : Webster's Revised Unabridged Dictionary (1913)

Archangel \Arch`an"gel\, n. [L. archangelus, Gr. 'archa`ggelos:
   cf. OF. archangel, F. archange. See {Arch-}, pref., and
   {Angel}.]
   1. A chief angel; one high in the celestial hierarchy.
      --Milton.

   2. (Bot.) A term applied to several different species of
      plants ({Angelica archangelica}, {Lamium album}, etc.).

Source : WordNet®

archangel
     n 1: an angel ranked above the highest rank in the celestial
          hierarchy
     2: a biennial cultivated herb; its stems are candied and eaten
        and its roots are used medicinally [syn: {garden angelica},
         {Angelica Archangelica}]