scavenger是什么意思_scavenger怎么读_中英文释义(含例句用法)

来自中古英语 scawageour,伦敦的税务官员，特指对外来商品收取税费的官员，来自盎格鲁法语 scawage,税收，税费，来自 Proto-Germanic*skau,注视，注意，检查，来自 PIE*skeue, 注视，注意，词源同 show,古义看，检查。因收取税费的同时兼顾打扫街道卫生，引申词义拾荒者，捡破烂者，后原词义逐渐消失，其引申词义成为主要词义。-enger,人，词源同 messenger,passenger.

scavenger: scavenger: [15] A scavenger was originally a scavager – the extra n is the same as that intruded into messenger, passenger, etc. This was acquired from Anglo-Norman scawager, and it started life as a term for an official whose job was to collect taxes levied on foreign merchants. Etymologically it denoted ‘inspector’, for it was derived from the verb escauwer ‘inspect’, which was borrowed from Flemish scauwen ‘look at’, a relative of English show.

By the 16th century the scavenger had begun to come down in the world, first to a ‘street-cleaner’ and finally to ‘one who gathers or lives on what others have thrown away’. The verb scavenge was derived from it in the 17th century.
=> show
scavenger (n.): 1540s, originally "person hired to remove refuse from streets," from Middle English scawageour (late 14c.), London official in charge of collecting tax on goods sold by foreign merchants, from Anglo-French scawager, from scawage "toll or duty on goods offered for sale in one"s precinct" (c. 1400), from Old North French escauwage "inspection," from a Germanic source (compare Old High German scouwon, Old English sceawian "to look at, inspect;" see show (v.)).

It has come to be regarded as an agent noun in -er, but the verb is a late back-formation from the noun. With intrusive -n- (c. 1500) as in harbinger, passenger, messenger. Extended to animals 1590s. Scavenger hunt is attested from 1937.

词态变化

复数 scavengers;

权威造句

1. He"s just fit for a job as scavenger.: 他只配当个清道夫.

2. He is not a scavenger nor just a moving appetite as some sharks are.: 它不是食腐动物,也不像有些鲨鱼那样,只知道游来游去满足食欲.

3. Mulberry red pigment hence was a good kind of natural radical scavenger.: 桑椹红色素是一种很好的天然自由基清除剂.

4. He be just fit for a job as scavenger.: 他正好当个清道夫之职.

5. Glutathione peroxidase ( GSH - Px ) acts as a free radical scavenger.: 谷胱甘肽过氧化物酶是生物机体内的自由基清除剂.

近反义词

scavenger"s cart 扫街车

scavenger system 清洗系统

acid scavenger 除酸剂

scavenger valve 部分回油阀

radical scavenger 游离基清除剂,基因净...

scavenger pump 扫线用泵

scavenger fan 换气扇

anthracene scavenger 蒽清除剂

scavenger pipe 扫线管

metal scavenger 金属净化剂

scavenger circuit 部分换油回流...

ozone scavenger 臭氧清除剂,臭氧净化...

scavenger enzyme 清除酶

scavenger cell 巨噬细胞

lead scavenger 铅携出剂

相似短语

gas scavenger 煤气净化剂

oil scavenger 回油器

oxygen scavenger 氧气清除剂，除氧剂

mesoporphyrin scavenger 金属净化剂

scavenger hunt 【美】寻物游戏（参加者在规定的时间内寻找指定的物品，以先找到者或先找到的队为胜）

scavenger enzyme 清除酶

scavenger fan 换气风扇

scavenger pump 换气泵

scavenger sheep 食腐羊群

scavenger valve 部分回油阀

单词分析

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记忆方法

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scavenger是什么意思，scavenger怎么读

scavenger基本信息

英英释义

中英词源