constant
	英 ['kɒnst(ə)nt]
美['kɑnstənt]
	    
	
    - adj. 不变的;恒定的;经常的
- n. [数] 常数;恒量
- n. (Constant)人名;(德)康斯坦特
 
    英英释意
	
	- 1. a quantity that does not vary
- 2. a number representing a quantity assumed to have a fixed value in a specified mathematical context;
- "the velocity of light is a constant"