anaphor

1. (linguistics) An expression referring to another expression. In stricter uses, an expression referring to something earlier in the discourse or, even more strictly, only reflexive and reciprocal pronouns.Examples: "Thus far, we have established that each other is an NP [noun phrase] which functions as a reciprocal anaphor requiring to take its reference from some antecedent elsewhere in the sentence, and that themselves is an NP which functions as a reflexive anaphor which also requires an antecedent to take its reference from."