noun
two-session system
Refers to an educational or instructional system divided into two sessions, such as morning and afternoon classes. Often used in the context of schools or training programs.
この学校では二部教授を採用している。
This school adopts a two-session system.
Compound of 二部 (two parts/sessions) and 教授 (teaching/instruction). The exact historical derivation is uncertain, but the term is conventionally associated with educational scheduling.