noun
long-term substitute teacher
Specifically a teacher hired on a temporary contract to cover extended absences such as maternity leave or long-term sick leave. Used primarily in educational contexts.
See also: 臨時的採用教員
産休の先生の代わりに臨採が入った。
A long-term substitute teacher came in to cover for the teacher on maternity leave.
Abbreviation of 臨時的採用教員 (りんじてきさいようきょういん, 'temporarily employed teacher').