ad·ven·ti·tious 
(ăd′vĕn-tĭshəs, -vən-)
(ăd′vĕn-tĭshəs, -vən-)adj.
1. Arising from an external cause or factor; not inherent: symmetry that was purely adventitious; adventitious circumstances that contributed to the plan's success.
2. Biology
a. Of or belonging to a structure that develops in an unusual place: adventitious roots.
b. Originating from an external source, especially as a contaminant: adventitious viruses in a cell culture.
c. Not congenital: adventitious deafness.
[From Latin adventīcius, foreign, from adventus, arrival; see ADVENT.]
ad′ven·titious·ly adv.
ad′ven·titious·ness n.
adventitiousadventitious roots of a corn plant
- gastrointestinal
- gastrolith
- gastrologic
- gastrological
- gastrologically
- gastrologist
- gastrology
- gastronome
- gastronomer
- gastronomic
- gastronomical
- gastronomically
- gastronomist
- gastronomy
- gastroparesis
- gastropod
- gastropub
- gastroscope
- gastroscopic
- gastroscopist
- gastroscopy
- gastrostomy
- gastrotomy
- gastrotrich
- gastrovascular