The Collaborative International Dictionary
Residuary devise
Residuary \Re*sid"u*a*ry\ (-?-r?), a. [See Residue.]
Consisting of residue; as, residuary matter; pertaining to
the residue, or part remaining; as, the residuary advantage
of an estate.
--Ayliffe.
Residuary clause (Law), that part of the testator's will in which the residue of his estate is disposed of.
Residuary devise (Law), the person to whom the residue of real estate is devised by a will.
Residuary legatee (Law), the person to whom the residue of personal estate is bequeathed.
Wiktionary
residuary devise
n. (context legal English) The person to whom the residue of real estate is devised by a will.