- associated with something by chance rather than as an integral part; extrinsic.
- Botany, Zoology. appearing in an abnormal or unusual position or place, as a root.
Origin of adventitious
Examples from the Web for adventitious
Wordsworth was determined to owe nothing to such an adventitious cause.A Dish Of Orts
There was no sting in their poverty; no adventitious misery belonging to it.Deerbrook
Formation of adventitious flowers and fruits within the ovary.
By Morren this production of adventitious spurs was called "Ceratomanie."
Not, indeed, that these depended on adventitious aids to remembrance.The Life of Florence Nightingale vol. 2 of 2
Edward Tyas Cook
- added or appearing accidentally or unexpectedly
- (of a plant or animal part) developing in an abnormal position, as a root that grows from a stem
Word Origin and History for adventitious
"of the nature of an addition from without," c.1600, from Medieval Latin adventitius "coming from abroad, extraneous," a corruption of Latin adventicius "foreign, strange, accidental," from advent- past participle stem of advenire "arrive" (see advent). Related: Adventitiously; adventitiousness.
- Arising from an external source or occurring in an unusual place or manner; extrinsic.
- Occurring accidentally or spontaneously, not caused by heredity.