stim·u·lus/`stɪmjələs; ˈstɪmjləs/ n,plural stimuli /-ˏlaɪ; -laɪ/ 1 [singular 单数,U] something that encourages another thing to grow and develop, or happen more 促进因素; 刺激(物): a stimulus to industrial development 促进工业发展的一个因素 2 [C] something that makes you or your body react 〔使人或人体产生反应的〕刺激: visual stimuli 视觉刺激