We found 5 dictionaries that define the word adventitious roots:

General (3 matching dictionaries)

1. adventitious roots: Merriam-Webster
2. adventitious roots: Vocabulary.com
3. Adventitious Roots, Adventitious roots: Wikipedia, the Free Encyclopedia

Science (2 matching dictionaries)

4. On-Line Biology Book: GLOSSARY (No longer online)
5. adventitious roots: Natural History Terms

(Note: See adventitious_root as well.)

Definitions from WordNet (adventitious root) ▸ noun:  root growing in an unusual location e.g. from a stem ▸ Also see adventitious_root Opposite: primary roots, fibrous roots, taproots ▸ Words similar to adventitious roots ▸ Usage examples for adventitious roots ▸ Idioms related to adventitious roots ▸ Wikipedia articles (New!) ▸ Words that often appear near adventitious roots ▸ Rhymes of adventitious roots ▸ Invented words related to adventitious roots