The Collaborative International Dictionary of English v.0.48:

Habitat \Hab"i*tat\ (h[a^]b"[i^]*t[a^]t), n. [L., it dwells, fr.
   habitare. See Habit, v. t.]
   1. (Biol.) The natural abode, locality or region of an animal
      or plant.
      [1913 Webster]

   2. Place where anything is commonly found.
      [1913 Webster]

            This word has its habitat in Oxfordshire. --Earle.
      [1913 Webster]

WordNet (r) 3.0 (2006):

habitat
    n 1: the type of environment in which an organism or group
         normally lives or occurs; "a marine habitat"; "he felt safe
         on his home grounds" [syn: habitat, home ground]

The Free On-line Dictionary of Computing (19 January 2023):

Habitat

    The original term for on-line graphical
   virtual communities or worlds.  Created at Lucasfilm in 1985
   by Randy Farmer and Chip Morningstar.

   (http://communities.com/habitat.html).

   (1996-06-12)