The Collaborative International Dictionary of English v.0.48:

Etiolate \E"ti*o*late\, Etiolated \E"ti*o*la`ted\, a.
   Having a blanched or faded appearance, as birds inhabiting
   desert regions.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Etiolate \E"ti*o*late\ v. i. [imp. & p. p. Etiolated; p. pr. &
   vb. n. Etiolating.] [F. ['e]tioler to blanch.]
   1. To become white or whiter; to be whitened or blanched by
      excluding the light of the sun, as, plants.
      [1913 Webster]

   2. (Med.) To become pale through disease or absence of light.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Etiolate \E"ti*o*late\, v. t.
   1. To blanch; to bleach; to whiten by depriving of the sun's
      rays.
      [1913 Webster]

   2. (Med.) To cause to grow pale by disease or absence of
      light. Etiolate

WordNet (r) 3.0 (2006):

etiolate
    adj 1: (especially of plants) developed without chlorophyll by
           being deprived of light; "etiolated celery" [syn:
           etiolate, etiolated, blanched]
    v 1: make weak by stunting the growth or development of
    2: bleach and alter the natural development of (a green plant)
       by excluding sunlight
    3: make pale or sickly; "alcohol etiolates your skin"