Definition of ADVENTITIOUS
- coming from another source; arising or occurring sporadically or in other than the usual location [adj ADVENTITIOUSLY]
- Happening or carried on according to chance rather than design or inherent nature
- Coming from outside; not native
- Formed accidentally or in an unusual anatomical position
- means coming from another source, and it is used in formal writing.
- (of a root) Growing directly from the stem or other upper part of a plant