adventitious

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Related to Adventitious shoot: adventitious root

adventitious

 [ad″ven-tish´us]
not normal to a part.

ad·ven·ti·tious

(ad-ven-tish'ŭs),
1. Arising from an external source or occurring in an unusual place or manner.
See also: extrinsic.
2. Occurring accidentally or spontaneously, as opposed to naturally or through heredity.
3. Synonym(s): adventitial

adventitious

/ad·ven·ti·tious/ (ad″ven-tish´us)
1. accidental or acquired; not natural or hereditary.
2. found out of the normal or usual place.

adventitious

(ăd′vĕn-tĭsh′əs, -vən-)
adj.
1. Arising from an external cause or factor; not inherent: "These rodents ... appear suddenly in the Oligocene, as if by adventitious entrance independent of the rest of the fauna" (George Gaylord Simpson).
2. Biology Of or belonging to a structure that develops in an unusual place: adventitious roots.

ad′ven·ti′tious·ly adv.
ad′ven·ti′tious·ness n.

adventitious

1 pertaining to an accidental condition or an arbitrary action.
2 not hereditary.
3 occurring at an inappropriate place, such as a coating on an artery.

ad·ven·ti·tious

(ad'vĕn-tish'ŭs)
1. Arising from an external source or occurring in an unusual place or manner.
See also: extrinsic
2. Occurring accidentally or spontaneously, as opposed to natural causes or hereditary.
3. Synonym(s): adventitial.

adventitious

1. Accidentally acquired or added by chance.
2. Occurring in an unusual place or in an irregular manner.

adventitious

  1. (of a root) growing laterally from a stem rather than the main root, e.g. prop roots of maize, clinging roots of climbing vines, and roots of BULBS, such as the daffodil.
  2. (of a bud) not developing in a leaf axil, as in Begonia where such buds can be produced from leaf wounds.

adventitious

formed after birth

ad·ven·ti·tious

(ad'vĕn-tish'ŭs)
1. Arising from an external source or occurring in an unusual place or manner.
2. Occurring accidentally or spontaneously, as opposed to naturally or through heredity.
3. Synonym(s): adventitial.

adventitious

1. accidental or acquired.
2. not in the usual place.

adventitious breath sounds
see breath sounds.
adventitious movements
purposeless movements; as seen in distemper myoclonus in dogs.
References in periodicals archive ?
Effect of various bud induction treatments on elongation and rooting of adventitious shoots of Canary Island pine (Pinus canariensis).
After 1-2 months culture, the adventitious shoot growth of red pitaya was suitable for rooting induction.
Our results indicated that determining factor for regeneration of adventitious shoots of genotypes of Rh.
The plantlets produced by somatic embryos in the presence of 1 mg/l K produced multiple adventitious shoot buds.
When internodal segments were used as explant, the development of adventitious shoots was detected in 62% of the explants culture in culture media supplemented with 2.
Considering these information, the objective of this work was to describe the effect of silver nitrate and cobalt chloride on the frequency of adventitious shoot regeneration and number of shoots per explant of in vitro culture of Cotyledonary node of medium staple cotton cultivar Barac B-67.
A protocol for Toona ciliata rachis explant propagation of regenerated plantlets obtained via adventitious shoot formation from callus cultures should thus include incubation in TDZ-supplemented MS medium (0.
Adventitious shoot regeneration, from vegetative shoot apices in pear and putative role of cytokinin accumulation in the morphogenetic process.
Table 1: Responses after 4 weeks of leaf section explants to growth regulators concentrations on callus formation and adventitious shoot regeneration response of grape cv.
The presence of TDZ has a greater influence on the induction of adventitious shoot buds than other cytokinins (Deore and Johnson, 2008).