from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Arising from an external cause or factor; not inherent.
- adjective Biology Of or belonging to a structure that develops in an unusual place.
from The Century Dictionary.
- In phytogeography, naturalized from a distant formation: opposed to *vicine. A term proposed by Pound and Clements. Compare
- Added extrinsically; not springing from the essence of the subject, but from another source; foreign; accidentally or casually acquired: applied to that which does not properly belong to a subject, but which is superadded or adopted, as in a picture or other work of art, to give it additional power or effect.
- In botany and zoology, appearing casually, or in an abnormal or unusual position or place; occurring as a straggler or away from its natural position or habitation; adventive.
- In anatomy, of the nature of adventitia: as, the adventitious coat of an artery.
from the GNU version of the Collaborative International Dictionary of English.
- adjective Added extrinsically; not essentially inherent; accidental or causal; additional; supervenient; foreign.
- adjective (Nat. Hist.) Out of the proper or usual place.
- adjective (Bot.) Accidentally or sparingly spontaneous in a country or district; not fully naturalized; adventive; -- applied to foreign plants.
- adjective (Med.) Acquired, as diseases; accidental.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective From an
externalsource; not innateor inherent, foreign.
Accidental, additional, appearing casually.
- adjective genetics, medicine Not
- adjective biology Developing in an
unusualplace or from an unusual source.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective associated by chance and not an integral part
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
Cuttings are plant pieces, usually stems or branches, capable of growing new roots, called adventitious roots.
Leaf-buds occasionally arise from the roots, when they are called adventitious; this occurs in many fruit trees, poplars, elms and others.
But as it was occasionally inexpedient to carry about measuring-chains a boy would do well to know the precise length of his own foot-pace, so that when he was deprived of what Hurree Chunder called adventitious aids 'he might still tread his distances.
But as it was occasionally inexpedient to carry about measuring-chains a boy would do well to know the precise length of his own foot-pace, so that when he was deprived of what Hurree Chunder called adventitious aids’ he might still tread his distances.
In one of David Attenborough's 'The Private Life Of Plants' episodes, he talks on similar fallen trunks that eventually give rise to a row of other daughter 'trees' growing out of the main trunk; these eventually grow adventitious roots and become independent.
If Barnes once called the contest "posh bingo", this year looks a lot less adventitious.
Third, probably very few of the participants (other than perhaps adventitious semi-professional looters) expected to gain anything in terms of significant personal profit or meaningful social betterment as a consequence of the upheavals in Los Angeles.
Things he did, no matter how adventitious or spontaneous, struck the popular imagination as remarkable.
As Meeker sees comedy as having a biological rather than idealistic focus, so Baillie sees it as properly centering on the “original distinctions of nature” rather than on the “adventitious distinctions ... of age, fortune, rank, profession, and country” (13).
The skilled reader is not dependent on the adventitious aids of easiness or brightness; he is no longer, for instance, dependent upon plot for his enjoyment of fiction, or upon what is called 'actuality' or 'incident', or mere verisimilitude of description.
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