咖啡因 kāfēiyīn
          
              kāfēiyīn 
              
              noun 
              caffeine 
              Domain: Modern Chinese 现代汉语
              
                , Subdomain: Chemistry 
              
              
                , Concept: Compound 化合物
              
              
              
               
          
          
Contained in
- 脱咖啡因(脫咖啡因) decaffeinated; decaf
 - 无咖啡因(無咖啡因) decaffeinated; decaf