Meaning Of Adventitious

a.

Added extrinsically; not essentially inherent; accidental or causal; additional; supervenient; foreign.

a.

Out of the proper or usual place; as, adventitious buds or roots.

a.

Accidentally or sparingly spontaneous in a country or district; not fully naturalized; adventive; -- applied to foreign plants.

a.

Acquired, as diseases; accidental.