adventitious Syllabification: (ad·ven·ti·tious)Pronunciation: /ˌadvenˈtiSHəs/Definition of adventitious adjective happening or carried on according to chance rather than design or inherent nature:my adventures were always adventitious, always thrust on me coming from outside; not native:the adventitious population Biology formed accidentally or in an unusual anatomical position:propagation of sour cherries by adventitious shoots Botany (of a root) growing directly from the stem or other upper part of a plant. Derivatives adventitiously adverb Origin: early 17th century: from Latin adventicius 'coming to us from abroad' (from advenire 'arrive') + -ous (see also -itious2)adventitious in other Oxford dictionaries Definition of adventitious in the British & World English dictionary
