chemical

英 [ˈkem.ɪ.kəl]      美 [ˈkem.ɪ.kəl]
  • n. 化学制品,化学药品
  • adj. 化学的
使用频率:
chemical
«
1 / 5
»
chemical
chemical: [16] Essentially chemical, and the related chemistry and chemist, come from alchemy with the initial al- dropped. Alchemy itself is of Arabic origin; al represents the Arabic definite article ‘the’, while the second element was borrowed from Greek khēmíā ‘alchemy’. Loss of al- seems to have taken place originally in French, so the immediate source of the English words was French chimiste and chimique (whence the now obsolete English chemic, on which chemical was based).

At first this whole group of words continued to be used in the same sense as its progenitor alchemy; it is not really until the 17th century that we find it being consistently applied to what we would now recognize as the scientific discipline of chemistry.

=> alchemy
chemical (adj.)
1570s, "relating to chemistry," from chemic "of alchemy" (a worn-down derivative of Medieval Latin alchimicus; see alchemy) + -al (1). In early use also of alchemy. Related: Chemically.
chemical (n.)
1747, from chemical (adj.). Related: Chemicals.
1. Some of the companies illegally sent the wherewithal for making chemical weapons.
有些公司非法为制造化学武器提供所需的资金和设备等。
2. The chemical structure of this particular molecule is very unusual.
这个特殊分子的化学结构很不寻常。
3. The chemical companies had amalgamated into a vast conglomerate.
那些化学品公司已经合并成一个庞大的企业集团。
4. Catalysts are materials which greatly speed up chemical reactions.
催化剂是可以大大加速化学反应的物质。
5. The Department maintains many close contacts with the chemical industry.
这个部门与化工行业保持着众多密切的联系。

广而告之

1一秒钟记单词小学英语单词记背神器英语一二三四五六年级人教版英语词汇汇总表单词记背神器 单词记忆书单词词汇速记强化训练 【推荐理由】赠运费险,热门商品 【现价】27.9 【下单链接】38¥ CZ3457 5OArdvEMFvn¥