The Collaborative International Dictionary of English v.0.48:

Vegetal \Veg"e*tal\, n. [F.]
   A vegetable. [R.] --B. Jonson.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Vegetal \Veg"e*tal\, a. [F. v['e]g['e]tal. See Vegetable.]
   [1913 Webster]
   1. Of or pertaining to vegetables, or the vegetable kingdom;
      of the nature of a vegetable; vegetable.
      [1913 Webster]

            All creatures vegetal, sensible, and rational.
                                                  --Burton.
      [1913 Webster]

   2. (Biol.) Of, pertaining to, or designating, that class of
      vital phenomena, such as digestion, absorption,
      assimilation, secretion, excretion, circulation,
      generation, etc., which are common to plants and animals,
      in distinction from sensation and volition, which are
      peculiar to animals.
      [1913 Webster]

WordNet (r) 3.0 (2006):

vegetal
    adj 1: composed of vegetation or plants; "regions rich in
           vegetal products"; "vegetational cover"; "the decaying
           vegetative layer covering a forest floor" [syn:
           vegetal, vegetational, vegetative]
    2: (of reproduction) characterized by asexual processes [syn:
       vegetal, vegetative]