Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The successful establishment of a plant or animal species in a habitat.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The process of successful establishment of a plant or animal species in a habitat that was barren previously/ or was left barren due to some catastrophe.

from The Century Dictionary and Cyclopedia

  • n. The fixation of a migrating plant in a new habitat.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (ecology) the process by which a plant or animal becomes established in a new habitat

Etymologies

From Greek oikēsis, inhabitation, from oikein, to dwell, from oikos, house; see weik-1 in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek οἴκισις (oikisis, "colonization") (Wiktionary)

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