leftover/'leftˌəʊvər $ -ˌoʊvər/

a. remaining after all the rest are used, eaten, etc.

n. [~s] food that has not been eaten at the end of a meal

a. [仅置于名词前] 剩余的；剩下的：Give the leftover fish to the cat. 把剩鱼给猫吃。

n. [~s] [P] 剩饭菜，残羹剩饭：Give the leftovers to the dog. 把剩饭菜给狗吃。

构词left + over