We don't have synonyms for chronograms yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are chronogram, chronograph and chronographs.
(n) :
A sentence or inscription whose letters, when interpreted according to a system (such as Roman numerals) in which letters correspond to numeric values, stand for a particular date (usually the date of inscription) when rearranged.
(n) :
(genetics) A phylogenetic tree that has branch spans proportional to evolutionary time.
(n) :
A sentence or inscription whose letters, when interpreted according to a system (such as Roman numerals) in which letters correspond to numeric values, stand for a particular date (usually the date of inscription) when rearranged.
(n) :
(genetics) A phylogenetic tree that has branch spans proportional to evolutionary time.