Question

stimulus n.刺激物,促进因素,刺激,刺激 Stimulus is a word often used in biology — something that causes a reaction in an organ or cell, for example. In financial and economic contexts, a stimulus may be an incentive: the money you spend on your membership is a stimulus for hitting the gym. Though it can be a synonym for stimulant, they are not always used interchangeably. A stimulant is often a chemical or drug that increases activity — think caffeine. For more than one stimulus, use stimuli, not stimuluses. 1[N-VAR 可变名词]刺激物；促进因素 A stimulus is something that encourages activity in people or things. Interest rates could fall soon and be a stimulus to the US economy...利率可能很快就会下调，从而刺激美国经济。It is through our nervous system that we adapt ourselves to our environment and to all external stimuli.我们是通过神经系统使自己适应环境及所有外部刺激的。

Accepted Answer

['stimjuləs] A stimulus causes an action or response, like the ringing of your alarm clock if you didn't sleep through it. ★★☆☆☆ 2005.0

英语单词	stimulus
英美音标	['stimjuləs]
中文释义	n.刺激物,促进因素,刺激,刺激
vocab简明	A stimulus causes an action or response, like the ringing of your alarm clock if you didn't sleep through it.
vocab扩展	Stimulus is a word often used in biology — something that causes a reaction in an organ or cell, for example. In financial and economic contexts, a stimulus may be an incentive: the money you spend on your membership is a stimulus for hitting the gym. Though it can be a synonym for stimulant, they are not always used interchangeably. A stimulant is often a chemical or drug that increases activity — think caffeine. For more than one stimulus, use stimuli, not stimuluses.
柯林斯星级	★★☆☆☆
柯林斯解释	1 [N-VAR 可变名词]刺激物；促进因素 A stimulus is something that encourages activity in people or things. Interest rates could fall soon and be a stimulus to the US economy... 利率可能很快就会下调，从而刺激美国经济。 It is through our nervous system that we adapt ourselves to our environment and to all external stimuli. 我们是通过神经系统使自己适应环境及所有外部刺激的。
来源	2005.0

Stimulus Stimulant Activity Stimjuləs N.刺激物,促进因素,刺激,刺激 Action Response Ringing