The Collaborative International Dictionary of English v.0.48:

Vegetate \Veg"e*tate\, v. i. [imp. & p. p. Vegetated; p. pr. &
   vb. n. Vegetating.] [L. vegetatus, p. p. of vegetare to
   enliven. See Vegetable.]
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   1. To grow, as plants, by nutriment imbibed by means of roots
      and leaves; to start into growth; to sprout; to germinate.
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            See dying vegetables life sustain,
            See life dissolving vegetate again.   --Pope.
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   2. Fig.: To lead a life too low for an animate creature; to
      do nothing but eat and grow. --Cowper.
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            Persons who . . . would have vegetated stupidly in
            the places where fortune had fixed them. --Jeffrey.
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   3. (Med.) To grow exuberantly; to produce fleshy or warty
      outgrowths; as, a vegetating papule.
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