DICT.TW Dictionary Taiwan

 ad·ven·ti·tious a.
 1. Added extrinsically; not essentially inherent.
 Syn: -- accidental; casual; incidental; additional; supervenient; foreign.
    To things of great dimensions, if we annex an adventitious idea of terror, they become without comparison greater.   --Burke.
 2. Nat. Hist. Out of the proper or usual place; as, adventitious buds or roots.
 3. Bot. Accidentally or sparingly spontaneous in a country or district; not fully naturalized; adventive; -- applied to foreign plants.
 4. Med. Acquired, as diseases; not hereditary. --AS
 -- Ad*ven*ti*tious*ly, adv. -- Ad*ven*ti*tious*ness, n.
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