alkaloidal的音标是[ˌæklɪsɪəʊlɪd],基本翻译是“碱性的”,速记技巧是“alk”谐音为“爱克”。
Alkaloids 是一种广泛存在于植物体内的天然化合物,其英文词源来自于 alkali(碱)。Alkali 本身来自于阿拉伯语“al-qaly”或“alkal”, 意为“碱性的”。
Alkaloids 的变化形式包括:
1. Monoamine:表示单胺类化合物,如肾上腺素。
2. Dihydroxy:表示含有两个羟基基团,如烟碱。
3. Quinone:一种含有醌结构的化合物,如咖啡因。
相关单词包括:
1. Atropine:生物碱的一种,具有很强的毒性和药理作用。
2. Codeine:一种常用的阿片类生物碱药物,常用于镇痛和止咳。
3. Caffeine:咖啡因,是咖啡、茶和可可等饮料中的主要成分,具有提神作用。
4. Nicotine:尼古丁,烟草中的主要生物碱成分,具有强烈的成瘾性。
5. Strychnine:番木鳖碱,一种强烈的神经毒素,常用于动物实验中。
6. Veratrum Nigrum:黑根草,一种含有生物碱的植物,具有药用价值。
7. Belladonna:曼陀罗,一种含有莨菪碱等生物碱的植物,具有镇静和止痛作用。
8. Hyoscyamine:硫酸盐生物碱,具有抗胆碱和抗毒作用。
9. Scopolamine:东莨菪碱,一种常用的抗胆碱药物,具有镇静、止痛和抗晕动作用。
10. Narcotine:麻醉剂,指所有生物碱类麻醉物质,如吗啡和海洛因等。
Alkaloids 在生物学和医学领域有着广泛的应用,它们在药物开发、毒理学和植物学等领域发挥着重要作用。
常用短语:
1. alkaline earth metal
2. alkaline earth oxide
3. alkaline earth carbonate
4. alkaline earth hydroxide
5. alkaline earth sulfide
6. alkaline earth phosphate
7. alkaline earth silicate
例句:
1. The soil contains a high concentration of alkaline earth oxide.
2. The reaction produces alkaline earth carbonate and hydrogen chloride gas.
3. The body produces alkaline earth hydroxide to maintain pH balance.
4. The soil contains a mixture of alkaline earth sulfide and iron oxide.
5. The chemical compound contains alkaline earth phosphate and other elements.
6. The glass contains alkaline earth silicate to improve its strength and durability.
英文小作文:
Alkaloids are a diverse group of natural compounds that have unique properties and functions. They are found in many plants and animals and are used in medicine, food, and other products. Alkaloids can have a bitter taste or astringent properties, which makes them difficult to digest, but they also have many beneficial effects on the body. Some alkaloids are used as drugs to treat various diseases and conditions, while others are used in traditional medicine to enhance health and well-being.
Alkaloids are also used in the production of other compounds, such as dyes, pigments, and pesticides. They can also be used in cosmetics and personal care products to enhance their effectiveness and stability. Alkaloids are a fascinating group of compounds that have been studied extensively by chemists and biologists for many years. They continue to provide valuable insights into the chemistry and biology of living systems and have opened up new avenues for the development of new drugs and products.