A student who is training to be a teacher, typically one who spends a specified period teaching in a school as a part of a formal teaching qualification.
Mid 19th century; earliest use found in The Lancet. From student + teacher.
student teacher/ˌstjuːdn(t) ˈtiːtʃə/ /ˌstʃuːdn(t) ˈtiːtʃə/
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