adventitious是什么意思,adventitious怎么背,怎么记,adventitious的词根词缀巧记速记方法,adventitious构词,构成,中文翻译

adventitious是什么意思,adventitious怎么背,怎么记,adventitious的词根词缀巧记速记方法,adventitious构词,构成,中文翻译_英语词典

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adventitious a 偶然的，不定的（advent来到+itious→[突然]来到的→偶然的）

释义2： adventitious
/ 7Adven5tIFEs , -vEn- /

◙ adjective
1. happening or carried on according to chance rather than design or inherent nature
• 偶然的
»adventitious similarities.
  一些偶然相似点。
  [coming from] outside; not native
• 外来的；非自然的
»the adventitious population.
  外来人口。
  [Biology] formed accidentally or in an unusual anatomical position
• [生] 偶生的，不定的
»adventitious lobes may appear between the primaries.
  偶生裂片可能出现在初级飞羽之间。
  [Botany] (of a root) growing directly from the stem or other upper part of a plant
• [植] （根）不定的

【派生】

♦ adventitiously adverb

【语源】

1. early 17th cent.: from Latin adventicius 'coming to us from abroad' (from advenire 'arrive') + -ous(see also -itious )

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