Legal Dictionary
Main Entry:
re·la·tion backFunction:
noun : the assigning of a prior date (as the date of execution of a document) to an act (as filing of a document and esp. a pleading) as the time of its effect esp. to avoid a time limit
relation back of amendments to the date of the original pleading>; also : the legal fiction that an action (as the filing of a document) was taken on a previous date to avoid the expiration of a time limit