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Not native to and not fully established in a new habitat or environment; locally or temporarily naturalized: an adventive weed.
An adventive organism.

[From Latin adventus, arrival; see advent.]

ad·ven′tive·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ədˈvɛntɪv) biology
(Biology) (of a species) introduced to a new area and not yet established there; exotic
(Biology) such a plant or animal
Abbreviation: casual
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ædˈvɛn tɪv)
1. not native and usu. not yet well established, as exotic plants or animals.
2. an adventive plant or animal.
ad•ven′tive•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.adventive - not native and not fully establishedadventive - not native and not fully established; locally or temporarily naturalized; "an adventive weed"
foreign, strange - relating to or originating in or characteristic of another place or part of the world; "foreign nations"; "a foreign accent"; "on business in a foreign city"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Maxwell TMR, Moir JL, Edwards GR (2012) Sulphur and lime response of four adventive annual clovers grown in a New Zealand high country soil under glasshouse conditions.
Effect of Indole-3 Butyric Acid and different strains of Agrobacterium rubion adventive root formation from softwood and semi-hardwood wild sour cherry cuttings.Turk.
In other words, T cell repertoire recognizes adventive antigens and is tolerant to self-antigen which is generated early in life in the primary organ for T cell development.[37],[38] Thymus is just like a bridge that connects the immune system and the neuroendocrine system.
Brunke AJ (2016) First detection of the adventive large rove beetle Ocypus nitens (Schrank) in Canada and an update of its Nearctic distribution using data generated by the public.
Records of adventive marine algae in New Zealand: Antithamnionella ternifolia, Polysiphonia senticulosa (Ceramiales, Rhodophyta), and Striaria attenuata (Dictyosiphonales, Phaeophyta).
Regional distribution: transcontinental species is described from "United States" in 1830 [56] and is widely distributed in North America reaching northward into southern Canada; also it is adventive in southern Europe and Korea [13].
As examples, paved surfaces (concrete, asphalt) directly remove habitat needed by ground-nesting bees and other insects; asphalt roads can induce misorientation of aquatic insects to polarised light, leading to futile oviposition on road surfaces; traffic can cause direct mortality; roadways may act as a barrier, isolating insect populations; light intensity in streets and buildings can attract phototactic insects from more natural areas and render them vulnerable to vertebrate predators; and 'heat islands' may affect development rates and tolerances of resident and adventive species.