1. A substitute; esp., a person appointed to act in the place of another (in his absence, Sam’s wife acted as a surrogate). See SURROGACY; surrogate mother under MOTHER.
2. A probate judge (the surrogate held that the will was valid). See probate judge under JUDGE. — surrogate, adj. — surrogacy (s[schwa]r-[schwa]-g[schwa]-see), surrogateship, n.