反作用 fǎn zuò yòng 🔊 reaction + Review this word Meanings fǎn zuò yòng (physics) reaction(fig.) backlash; unintended consequence Its characters 反fǎncontraryHSK 5作zuòto do; to engage in用yòngto use; to make use of; to employHSK 3 Words with 反作用 反作用力 fǎn zuò yòng lì reaction force