硬化yìnghuà 1.物体由软变硬{(of an object) harden; become hard}: 生橡胶遇冷容易～,遇热容易软化{Raw rubber is apt to harden when subjected to low temperatures and to soften at high temperatures.}|血管～。{vascular sclerosis} 2.〈比喻fig.〉思想停止发展;僵化。{ossify; become rigid or inflexible in thinking, opinions, etc.}