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castor

英 ['kɑ?st?] 美['k?st?]
  • n. [作物] 蓖麻;[家具] 脚轮;调味瓶;海狸
  • n. (Castor)人名;(西、法、葡、英)卡斯托

畅通词汇

词态变化


复数:?castors;

中文词源


castor 海狸

来自希腊神话双子星座Kastor和Pollux,其中Kastor为医神,因海狸分泌物具有重要的药物价值而得名。

英文词源


castor
castor: There are two distinct words castor in English. The older originally meant ‘beaver’ [14], and was early used with reference to a bitter pungent substance secreted by glands near the beaver’s anus, employed in medicine and perfumery. The term castor oil [18] probably comes from the use of this oil, derived from the seed of a tropical plant, as a substitute for castor in medicine.

The more recent castor [17] is simply a derivative of the verb cast; it was originally (and still often is) spelled caster. Its use for sprinkling or ‘throwing’ sugar is obvious (the term castor sugar dates back to the mid 19th century), but its application to a ‘small swivelling wheel’ is less immediately clear: it comes from a now obsolete sense of the verb, mainly nautical, ‘veer, turn’: ‘Prepare for casting to port’, George Nares, Seamanship 1882.

=> cast
castor (n.)
late 14c., "beaver," from Old French castor (13c.), from Latin castor "beaver," from Greek Kastor, literally "he who excels," name of one of the divine twins (with Pollux), worshipped by women in ancient Greece as a healer and preserver from disease.

His name was given to secretions of the animal (Latin castoreum), used medicinally in ancient times. (Through this association his name replaced the native Latin word for "beaver," which was fiber.) In English, castor is attested in this sense from c. 1600. Modern castor oil is first recorded 1746; it is made from seeds of the plant Ricinus communis but supposedly possesses laxative qualities (and taste) similar to those of beaver juice, and thus so named.

双语例句


1. She has gone to bed and had a dose of castor oil.
她服用了一剂蓖麻油,已经上床睡了。

来自柯林斯例句

2. He filled a cup with kerosene, castor oil and vinegar.
他往杯子里装满了煤油 、 蓖麻油和醋.

来自辞典例句

3. The size and the command timbre of Gus's voice startled Castor.
格斯说话的嗓门和命令口吻使卡斯托吃了一惊.

来自辞典例句

4. Castor oil moves the bowels.
蓖麻油能通便.

来自辞典例句

5. He scrawled a few notes to Castor.
他潦草地给卡斯特写了几张货物清单.

来自辞典例句

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