\Hi`e*rom*ne"mon\, n. [NL., from Gr. ?; "iero`s sacred + ? mindful, fr. ? to think on, remember.] (gr. Antiq.) 1. The sacred secretary or recorder sent by each state belonging to the Amphictyonic Council, along with the deputy or minister. --Liddel & Scott. 2. A magistrate who had charge of religious matters, as at Byzantium. --Liddel & Scott.