residuary       
adjective  law specialized uk/rəˈzɪd.ju.ər.i/ us/rəˈzɪdʒ.u.er.i/
 剩余遗产的
relating to the part of a dead person's money and property that is left after taxes and debts have been paid, and bequests (= gifts)have been made
  Her will left her residuary estate to her daughter.
 A residuary beneficiary is the person to whom the balance of an estate is given after all other bequests are distributed. 剩余遗产受益人是指在分配完所有其他遗赠后,将获得遗产余额的人。 
  - More examples
 - The money should be distributed to the beneficiaries named in the residuary clause of his will.
 - The will appoints Mr Smith her executor, and you the residuary legatee.