[ ad-ven-tiv ]
/ ædˈvɛn tɪv /
Botany, Zoology


not native and usually not yet well established, as exotic plants or animals.


an adventive plant or animal.

Nearby words

  1. adventitial cell,
  2. adventitial neuritis,
  3. adventitious,
  4. adventitious cyst,
  5. adventitious root,
  6. adventively,
  7. adventure,
  8. adventure playground,
  9. adventure racing,
  10. adventure tourism

Origin of adventive

1595–1605, for an earlier sense; < Latin advent(us) advance, incursion (see advent) + -ive

Related formsad·ven·tive·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for adventive

British Dictionary definitions for adventive


/ (ədˈvɛntɪv) biology /


(of a species) introduced to a new area and not yet established there; exotic


such a plant or animal
Abbreviation: casual

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for adventive


[ ăd-vĕntĭv ]

Not native to and not fully established in a new habitat or environment. An adventive plant may be locally or temporarily naturalized without finding conditions that allow it to spread more widely.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.