We don't have synonyms for anaphors yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are anaphora, anaphor and anaphoras.
(n) :
(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.
(n) :
(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.