adventitious

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ad·ven·ti·tious

 (ăd′vĕn-tĭsh′əs, -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·ti′tious·ly adv.
ad′ven·ti′tious·ness n.

adventitious

(ˌædvɛnˈtɪʃəs)
adj
1. added or appearing accidentally or unexpectedly
2. (Botany) (of a plant or animal part) developing in an abnormal position, as a root that grows from a stem
[C17: from Latin adventīcius coming from outside, from adventus a coming]
ˌadvenˈtitiously adv

ad•ven•ti•tious

(ˌæd vənˈtɪʃ əs)

adj.
1. associated by chance and not as an integral part; extrinsic.
2. appearing in an unusual or abnormal place, as a root on a stem.
[1595–1605; < Latin adventīcius literally, coming from without =advent(us), past participle of advenīre (see advent) + -īcius -itious]
ad`ven•ti′tious•ly, adv.
ad`ven•ti′tious•ness, n.

adventitious

Growth produced where it does not normally occur. For example, roots or buds produced along stems.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.adventitious - associated by chance and not an integral partadventitious - associated by chance and not an integral part; "poetry is something to which words are the accidental, not by any means the essential form"- Frederick W. Robertson; "they had to decide whether his misconduct was adventitious or the result of a flaw in his character"
extrinsic - not forming an essential part of a thing or arising or originating from the outside; "extrinsic evidence"; "an extrinsic feature of the new building"; "that style is something extrinsic to the subject"; "looking for extrinsic aid"

adventitious

adjective
Not part of the real or essential nature of a thing:
Translations

adventitious

[ˌædvenˈtɪʃəs] ADJ (frm) → adventicio

adventitious

adj (form)zufällig

adventitious

[ˌævɛnˈtɪʃəs] adj (frm) (event, situation) → fortuito/a
References in periodicals archive ?
1989), whereas adventitious bud regeneration has scarcely been investigated in this species, and limited to those reporting bud formation from hypocotyl (Marcotrigiano and Stimart, 1983) and leaf explants (Rao et al.
TDZ is a highly effective regulator of in vitro morphogenesis and can induce differentiation and dedifferentiation in woody species (24), and contributes to rejuvenation of adult material among various forest species by inducing adventitious bud on organs such as leaves and internodes (25).
2001) the presence of cytokinin is not essential for adventitious bud development.
1997) had advanced a hypothesis that adventitious bud development was a direct effect of BA induced suppression of main/axillary shoot growth.
Adventitious knots (AK) and adventitious knot clusters (AKC), sometimes referred to as adventitious bud clusters and epicormic branches, are buds found at points along the stem.