stimulus noun
ADJ. great, major, powerful, strong | negative, positive | external | initial | auditory, intellectual, sensory, verbal, visual
VERB + STIMULUS act as, give, provide | react to, respond to
STIMULUS + VERB come from sth The initial stimulus came from a letter in the newspaper.
PREP. ~ for The very act of lying down in bed should provide a strong stimulus for sleep. | ~ to A reduction in corporate tax should act as a stimulus to economic activity.
PHRASES (in) response to a stimulus
You can also check other dicts: stimulus (English, 中文解释 ), wordnet sense, Collins Definition