1831, from alkali (q.v.) + -oid. "A general term applied to basic compounds of vegetable origin, bitter in taste, and having powerful effects on the animal system" [Flood]. As an adjective by 1859.
实用例句
1. The true alkaloid nicotine in Nicotiana functions as an allomone against many insect species.
烟草属中的真生物碱,烟碱作为利已激素,能防治许多昆虫.
来自辞典例句
2. Quinine: Alkaloid found in the bark of cinchona trees and shrubs.
奎宁: 金鸡纳树皮中的生物碱,主要用于治疗疟疾.
来自互联网
3. So we survey Kunyu mountain alkaloid plant while our practice emphatically.
为此,我们在实习中着重对昆嵛山生物碱植物进行了调查,介绍了生物碱植物的主要疗效及用药注意事项.
来自互联网
4. It is a curare alkaloid derived from the South American plant.
它是箭毒碱,提取自一种南美产的植物.
来自互联网
5. Morphine: Heterocyclic compound, narcotic analgesic alkaloid originally isolated from opium.
