Source : Webster's Revised Unabridged Dictionary (1913)

Voracious \Vo*ra"cious\, a. [L. vorax, -acis, fr. vorare to
   devour; akin to Gr. ? meat, food, ? to devour, Skr. gar. Cf.
   {Devour}.]
   Greedy in eating; very hungry; eager to devour or swallow;
   ravenous; gluttonous; edacious; rapacious; as, a voracious
   man or appetite; a voracious gulf or whirlpool. --Dampier. --
   {Vo*ra"cious*ly}, adv. -- {Vo*ra"cious*ness}, n.

Source : WordNet®

voraciously
     adv : in an eagerly voracious manner; "she reads voraciously"