adventitious


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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 ?
Patients with adventitious sounds experienced a longer hospital stay (Table 1).
The increase in average temperatures in the summer and spring favored the metabolism of mini-cuttings, reduced the average time (days) of adventitious root induction and, consequently, increased the LRL.
The application of exogenous auxins favors adventitious rooting, but this response only occurs up to a maximum dose, after which there is an inhibitory effect on root formation (NIENOW et al.
laticuspis air layering resulted such a successful technique to initiate adventitious roots stem, so that root production was better than cutting, as it occurs in vegetative propagation of Cecropia obtusifolia (LaPierre, 2001).
After 1-2 months culture, the adventitious shoot growth of red pitaya was suitable for rooting induction.
Likewise, there was significant difference in the dry matter of adventitious roots (Figure 3A) and total root dry matter (Figure 3B).
Five days after initiation, the adventitious roots transferred to media of orthogonal design began to expand, except those in medium No.
Regarding the rhizophores (Figures 1-4), the two species have in common the rigidity, thickening in the nodal regions, and the formation of white (Figure 2) and brown adventitious roots (Figures 3-4).
Based on test, this market is categorized into adventitious agents detection test, bioburden tests, cell line authentication and characterization tests, endotoxin tests, residual host contaminant detection tests, sterility testing, and other tests (efficacy tests, toxicity tests, stability tests).
Optimization of factors influencing each step of micropropagation procedure is necessary for successful regeneration through adventitious bud induction (STOJICIC et al.
Adventitious root growth was significantly affected by the NaCl X P interaction, except for adventitious root dry weight percentages (Table 2) where the separate effect of NaCl was significant.
Among these Annonaceae, in cherimoya (Annona cherimola), the most exploited Annona, the morphogenetic capacity is extremely low, showing minimal level of rooting making almost impossible the use of classic vegetative propagation methods, because the induction rate of adventitious roots from scions obtained from adult specimens with agronomic interest is null.