V2EX para

Para

释义 Definition

para(常见于前缀 *para-*):表示“旁边、相对、超出/不同于、(在化学中)对位”。也可作口语缩写,指 parachute(降落伞)paramedic(急救员) 等,具体取决于语境。

发音 Pronunciation (IPA)

/pr/(作独立词时常见读音;作前缀 para- 时也常见 /pr-/)

例句 Examples

I packed my para before the jump.
我在跳伞前把降落伞装备收拾好了。

In organic chemistry, “para” describes substituents positioned opposite each other on a benzene ring.
在有机化学中,“para”用来描述苯环上两个取代基位于彼此相对的位置(对位)。

词源 Etymology

来自希腊语 para(παρ),意为“在旁边、在一侧、相对”。因此在英语里常作为构词成分出现,如 parallel(平行的)、paradox(悖论)、parameter(参数)等;在化学命名中,“对位(para-)”的用法也源于“相对/对面”的含义。

相关词 Related Words

文学作品 Literary Works

  • Alice’s Adventures in Wonderland(Lewis Carroll)中常见 paradox 等同源词的用法,体现希腊语 para- “相对/反常”的语义延伸。
  • The Elements(Euclid,常见英文译本)与后续数学写作中频繁出现 parallel(平行)等带 para- 的词。
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