Entry 1 sense Webster, 1913 Epistoler /(ē̇*pĭs"tō̇*lẽr)/ · E·pis·to·ler · IPA 01 n. One of the clergy who reads the epistle at the communion service; an epistler. 1. One of the clergy who reads the epistle at the communion service; an epistler.(Eccl.)