noun 1.a person who relates or tells; narrator.
2.Law.a.a private person on whose suggestion or complaint certain writs, as a quo warranto, are issued and whose position is analogous to that of a plaintiff.
b.a party in interest who is allowed to institute a proceeding in the
name of a public official when the right to sue rests exclusively in that official.
Origin: 1585–95; <
Latin relātor a proposer, mover. See
relate,
-tor