| ̷ ̷ˌka(a)|stirēən, -ˌkai|-, -_kə|-, -tēr- adjective
or lan·cas·tri·an (ˈ) ̷ ̷|ka(a)strēən, -|kais-
Usage: usually capitalized
Etymology: Joseph Lancaster died 1838 English educationist + English -ian
: of or relating to a monitorial system of instruction in which advanced pupils in a school teach pupils below them