adventitious

views updated May 23 2018

ad·ven·ti·tious / ˌadvenˈtishəs/ • adj. happening or carried on according to chance rather than design or inherent nature. ∎  coming from outside; not native: the adventitious population. ∎  Biol. formed accidentally or in an unusual anatomical position: propagation of sour cherries by adventitious shoots. ∎  Bot. (of a root) growing directly from the stem or other upper part of a plant.DERIVATIVES: ad·ven·ti·tious·ly adv.

The Oxford Pocket Dictionary of Current English

adventitious

views updated May 17 2018

adventitious coming from without, accidental, casual. XVII. f. adventitius, medL. sp. of L. adventīcius, f. advent-; see prec. and -ITIOUS1.

The Concise Oxford Dictionary of English Etymology T. F. HOAD

adventitious

views updated May 18 2018

adventitious (ad-ven-ti-shŭs) adj.
1. occurring in a place other than the usual one.

2. relating to the adventitia.

A Dictionary of Nursing

adventitious

views updated May 21 2018

adventitious Growing from an unusual position, e.g. roots from a leaf or stem.

A Dictionary of Plant Sciences MICHAEL ALLABY

adventitious

views updated May 11 2018

adventitious Describing organs or other structures that arise in unusual positions. For example, ivy has adventitious roots growing from its stems.

A Dictionary of Biology

adventitious

views updated May 18 2018

adventitious Growing from an unusual position (e.g. roots from a leaf or stem).

A Dictionary of Ecology MICHAEL ALLABY

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