The Collaborative International Dictionary of English v.0.48:

Howl \Howl\, v. i. [imp. & p. p. Howled; p. pr. & vb. n.
   Howling.] [OE. houlen, hulen; akin to D. huilen, MHG.
   hiulen, hiuweln, OHG. hiuwil[=o]n to exult, h?wo owl, Dan.
   hyle to howl.]
   1. To utter a loud, protracted, mournful sound or cry, as
      dogs and wolves often do.
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            And dogs in corners set them down to howl.
                                                  --Drayton.
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            Methought a legion of foul fiends
            Environ'd me about, and howled in my ears. --Shak.
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   2. To utter a sound expressive of distress; to cry aloud and
      mournfully; to lament; to wail.
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            Howl ye, for the day of the Lord is at hand. --Is.
                                                  xiii. 6.
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   3. To make a noise resembling the cry of a wild beast.
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            Wild howled the wind.                 --Sir W.
                                                  Scott.
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   Howling monkey. (Zool.) See Howler, 2.

   Howling wilderness, a wild, desolate place inhabited only
      by wild beasts. --Deut. xxxii. 10.
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